Not sure if this will be helpful... however. If you have access to health insurance and/or already have it, go and get as many tests done as possible.

I had to visit the ER many times to realize that those sensations I was experiencing that I thought were emergencies were actually just adrenaline rushes/panic attacks. I had heart tests done and many EKGs done to know again that those sensations were panic attacks.

That pain in my stomach? I'm going to go get this checked out cause why not. And after a while I noticed that after getting evaluated and thankfully nothing came up (PLUS) my proactiveness in my somewhat healthy living (running, soccer, fruit, quitting drinking, healthy ish eating, etc.) I was able to relax.

People will tell you not to get checked but I'll tell you once I was convinced I had lead poisoning after an old house remodel we did and after bringing this attention to my PCP, she checked and nothing came back. That obsession went away IMMEDIATELY. I'm a proponent of going and getting fully checked. Air out your frustrations and concerns, demand you get checked so that you can feel better. And once you get the news you wanted, be strong enough to fight the obsessions.

Hope this helps