HI Lady Daviot, you will see there are lots of us on here with Health Anxiety. I am 47 and mine has got worse in the last 2 years since my period cycles went weird. Honestly I have thought I have had just about everything there is to have, wasted so many holidays worrying, got everything checked out then moved onto the next thing. Just one word of caution about taking supplements...I was so desperate to lose the anxiety that I started taking Menopace menopause plus some vitamins. Had a routine blood test 3 months later and my liver enzymes were a bit elevated...the GP thought it was probably due to the supplements, told me to stop them, but had to send me for a scan / repeat blood tests. Whole thing took 3 months and really hyped up my worry big time. Blood tests were fine once I had quite the supplements. Maybe it was just a blip or virus but have heard from a few other GPs that you need to be careful what you take and where you get it from.
I think we are all desperate to find that magic pill that takes our bodies back 5 years.