I'm sorry you're feeling like this and that you also had to go through this trauma.
I have a lot of issues with pain and illness that often go unexplained, and for me personally put it down to my mental wellbeing. It's the hardest thing to ask help for but believe me, my trauma, although was not physical (I lost my mum young) affects me now physically. The stress, emotion and trauma after 12 years still afffects me hugely today. I get so ill sometimes I just pass it off, but I was very ill this year and it will affect me the rest of my life, so my advice, if in your gut something is wrong you push and push and push you doctors until get get the answers you need.
You're stronger and more resilient than you realise.
Sending love from a stranger to another x