I had one 5 years ago - abdominal - ovaries came out as well - and it was one of the best things I ever did. It freed me from years of pain and terrible periods.
i am petrified of being put to sleep and not waking up
I honestly found the GA very pleasant; drifted off no problems. I had an epidural just beforehand. I don't remember much from that going in, to coming round after the operation.
I’m scared of them finding so much wrong once their in
I do hope nothing is seriously wrong, but it's better to know what's going on so you can be treated, than to be worrying because they are not able to diagnose you.
told they will try to save my ovaries
I hope they will - they might be able to save one if not both. Unfortunately mine were too damaged to keep. I don't really miss them now I have got over the initial menopause phase.
just nervous scared and worried
It would be strange if you weren't scared and worried. Everyone is different but my operation really wasn't that bad. I was home within 2 days and back to work 7 weeks later. Lying on the sofa not feeling any expectation of doing anything was actually quite pleasant.
If you have any specific queries I will happily try to answer them for you based on what happened to me 