I think getting older is really scary when you've been healthy all your life. I'm in the same boat, now we have to face the thought of operations which scare me to death!
I'm having a steroid injection and nerve block injection in my foot on Friday. I've no idea if these will help or leave me in even more pain. Also having a cataract operation, not sure when. which scares me even more.
Lots of scaring going on here, but I keep telling myself it's all in my head. I think for both of us, the imagining is always going to be the worst part. I'm just thinking about other procedures I've had done and they were a walk in the park compared to the walk going on in my head (through burning bushes) ha ha.
So just remember they do this stuff all the time and if you keep calm you'll have no problem at all. Strangely enough, I do calm down when the procedure starts, it's the days before which are worse.