Health anxiety has burdened my life since I was in Primary school & I'm now in my 30s. I lost my dad to leukaemia when I was 3 & him being ill/dying are my earliest memories.
I've convinced myself so many times over the years that I've had heart problems, a brain tumor, stomach cancer, an anurisym, anaemia, the list goes on. I've been in & out of hospital & on meds/talking therapy since I was 14.
Pregnancy was the worst trigger for me. I was convinced I was having a miscarriage, pregnancy was ectopic etc. I had a C-section which was horrendous for my HA & I was convinced for weeks after that I'd developed DVT.
People who don't have HA don't understand how real the symptoms are. My OH struggles to cope with it & it causes problems.
I'm sorry you're going through this & I have no advice. Strangely for me, the pandemic has helped as I found myself not scared of Covid. Sadly though since having my vaccine it's flared up again as I keep getting pain in my leg & I keep thinking DVT!!!
It's a never ending circle. Keep talking to whoever will listen, speak to your GP & stay off Google. Please DM me if you wish to chat.