Gasping for breath because its "too hot"

Get him to the doctors asap. That is not right. He needs a heart check.

Has he had long covid?

Off to the drs.

Definitely see the GP. It doesn’t need to be tomorrow, you can make a appointment for when you are able to book one. At our GPS we can book an appointment online about two weeks in advance. Do that tomorrow and avoid any exercise that leaves him struggling in the meantime.
Good luck.

Hiatus hernia can cause shortness of breath. Cardiology have given me a thorough investigation, only to find my breathlessness is caused by my hiatus hernia. Perhaps your husband could ask his GP to consider investigating this area.

I forgot to say he's now flatly refusing to go back to the doctor's because it's a waste of time. I didn't want to write a long screed that no-one bothered to read, and omitted that important fact.
Believe me, if I could get him to the surgery I would have done it months ago.
He's had ECGs, echocardiogram, the procedure where they stop and start your heart (I forget the name) three times, plus other strange procedures involving isotopes - you name it, he's had it.
But not hiatus hernia Aldom, thank you for that.
I wonder if I can persuade him back to the surgery for one more 'try' ....... ?
His gp won't discuss it with me of course , I have tried.

Hmm ... very difficult.
?? Asthma caused by pollen count??
?? Try antihistamine like cetirizine.
You can either persuade him to try drs again or wait until he collapses and ring for an ambulance.
Or you could try ringing 111 for advice.
The other thing I find useful is a little oxygen monitor to see if his 02 Sat's are above 95%
They are not dear but very useful.
Especially with "Covid around.
Men can be so difficult.

Could he be persuaded to do a telephone appointment? At least things could be put in place after that. He doesn’t necessarily need to actually see the GP again if he doesn’t want to.

Is there a problem with his temperature regulation system? The body should adjust itself to the surrounding temperature, with sweating or shivering as appropriate. Perhaps he just needs to find a way to cool down when it's hot.

My first thought was is it hayfever, I’m always shorter of breath when the sun is out in May and June because of it, it definitely affects my airways. I use Allevia, which used to be prescription only but you can now get over the counter.

Just remembered, anemia also causes shortness of breath. Anemia contributed to my recent problems regarding breathlessness. Since treatment I am much better.

We're a bit off topic, I was actually asking if anyone had tried using those little canisters of pure oxygen you can buy. They are like a very large fly-spray and come with a mask, and you put the mask over your nose and mouth and take a breath.
They sell them on places like EBay and Amazon.
I've tried to copy and paste an image but must be doing something wrong, I'm not very competent with IT.

Ex Dancer , I have no experience of the oxygen canisters you refer to, but my instinct would be to stay clear of them . You have obviously tried to get your DH back to the GP and I recognize he has had lots of investigative procedures, however he is clearly not well. If he won't listen to you, have you AC that would speak to him or failing that a good friend who would try and persuade him to visit his GP? I do hope you make progress with this matter.

Some good advice here:
1/ Telephone appointment with the doctor if he won't go in.
2/ Buy a pulse oximeter to check his blood oxygen levels. Something you could do before and after exercise, or indeed any time. Loads on Amazon.
3/ Check hiatus hernia or other possible causes.

If he’s had 3 cardio versions (stop-restart heart) that suggests atrial fibrillation. That, combined with hot weather can cause breathlessness.
He needs to discuss with his GP as you know. Best of luck making that happen

Good luck. Let us know what happens. I have no different advice to offer, what’s been offered here is all good.

I was going to say the same as Iam64 Cardioversions are done because the heart rate is too fast or because it's irregular. Are you sure he's sharing all his information with you? Tachycardia and fibrillation/flutter can all cause a shortness of breath especially in hot weather when the heart has to work harder. Sometimes people go into denial if they are told something about their health that they find worrying. Does he take any tablets on a regular basis? I think a good chat is called for. Good luck.

I have heart failure and find hot weather exacerbates my shortness of breath as does very cold weather or windy weather.
I suggest he sees his GP asap.

Thanks foxie48. The cardiologist who did my cardioversion advised against a 2nd one because the failure rate is high. He was very clear, no exercise in heat. I was going to Greece with two friends I walk with often in the UK. He said it’s ok for your friends to climb hills in the Greek sun, but not for you . Exercise in heat is no longer an option for you
I was not happy but followed his strict clear advice. It’s stayed with me from 10 years ago, when I found myself uncomfortable when reading in my garden during the very occasional warmth. I came indoors, drank water and lay down to relax. Felt better in mins
Ex Dancer, my experience is men don’t always ask necessary questions or share relevant info x

This might sound simplistic but could he be dehydrated, especially during the warmer weather?
This is from a question online:

Does drinking water increase oxygen in the body?
When you drink lots of water, your lungs remain properly hydrated, which improves their ability to oxygenate and expel carbon dioxide. Therefore, the oxygen saturation level of your body gets improved. Also, drinking 2-3 litres of water may improve your blood's oxygen saturation level by up to 5 per cent.

(I'm not belittling his heart problems by the way).

Aldom

Hiatus hernia can cause shortness of breath. Cardiology have given me a thorough investigation, only to find my breathlessness is caused by my hiatus hernia. Perhaps your husband could ask his GP to consider investigating this area.

Very true. I have a hiatus hernia and that can happen to me. Some people get really frightened when they see it happen.

I have similar problems to your husband, with severe breathlessness and fatigue; but no cause found, it was found I have a slight 'heart beat problem' but apparently not enough to be causing problems. I was under my local hospital but discharged, so paid to see someone to try to find out what it is and had lots of additional tests but still no diagnosis but its suggested it could be 'vocal cord dysfunction' and 'hypersensitivity'.

Apparently his heart and lungs are strong

When were they last checked?

My DH started becoming more breathless (he does have lung problems) and it was found that he needed to have a pacemaker fitted.

Can you persuade him to go to the GP and go with him so that you can listen to the conversation. It's better to have another person there as it's often possible to miss something if being given a lot of information.

Do not, in any circumstances, buy an O2 canister on-line. Giving people oxygen who don't need it can be very dangerous and even fatal.
You don't say how old he is, but why would he agree to having oxygen if he won't go back to the GP?
You are within your rights to return and ask for a referral, or even change your GP.
I am with others here. It could be anaemia, hiatus hernia or hayfever, which isn't always about streaming eyes.

One thing I have noticed is the increase in humidity this summer- much higher than normal so this could also be a factor.
Also do you live in an area where the air quality is poor? This could also be a factor.
I do hope you get it sorted soon, and please don't buy O2 from the inter-net. I am amazed it is even legal to do so.