Chronically Ill and HA

How do other people deal with having legitimate health issues (previous long term hospital stays, surgery, 20 year plans, 1 in a million chances) and also having health anxiety

I have been chronically ill since I was 3 months old and I was luckily to survive with the very few although present issues I have today. I’m curious how other people with chronic illnesses battle HA and switch between legitimate medical issues and OCD/wasting money on doctors appointments?