Clovie, just to gently say all this Googling is going to make your anxiety worse. I know we all do it but if you are anxious already, it's probably not helping you. There are possible complications with every medical procedure & every medication can have side effects but of we keep worrying about the what ifs, none of us would take any meds or have any necessary procedures.
I think, & this is only my personal opinion, whilst it's good that now a day's one is given so much more information about all things medical, if you are prone to anxiety, it just makes things worse. Prior to my husband having his first GA I was really hoping the nurse wouldn't go through the list of potential complications with him on the pre op day. But she did & he nearly got up & walked out.
It's very unlikely you will have complications but I suppose in these days of compensation claims, they have to cover their backs, so to speak. It's highly likely you will come away from it all fine without anything sinister going on inside your body.
You've gotten yourself in a spiral of anxiety that is making things so much worse than it needs to be. I've helped a number of people go through procedures who have health anxiety & it does sound like you need some help to process your thoughts differently. I don't know if you can do that yourself or you need someone else, like your husband, to help you through.
I hope I don't sound like I'm trying to lecture you, I'm not, I can just tell from your posts you're getting your self in quite a state & almost searching everything out then focusing on the 'what ifs'.
Is there a local service or one at your GP that can help you deal with all this?
My GA was full GA & I woke up probably within 5 - 10 minutes after the hysteroscopy & felt fine. I didn't have any effects from the GA & was just elated it was a piece of cake! I would have GA again if necessary.
I really feel for you & hope you can get ontop of things so you can start to relax a little.