Nanny41 my DH had a, thankfully, minor heart attack in September last year. It happened in the early morning and wasn't dramatic (he called the 111 helpline himself) He didn't have any stents (artery to blame too small) but is on lots of different tablets since then.
You don't say if it was serious or not or how it has affected him otherwise. My DH is managing his own medication and has been to cardiac rehab classes (presumably the support group you refer to) which has helped him a lot. He's certainly taken on board the advice he's been given and has cut back on his alcohol intake (which was high!) and is back to his country walks (he's involved with the Ramblers) which he does on his own, I always ask where he's going and he always takes his mobile phone.
The advice nowadays is to not become an invalid but to keep active unless told otherwise. Please try not to worry, things are so much better these days medically, so he will hopefully be fine
NEW GAME - ALPHABETICAL groups/bands