I'm not young anymore.

I am 26.
I have Chronic GERD. Chronic Prostatitis. Bowel issues. Vitamin D+B12 deficiency. I have had severe OCD and anxiety issues since 7 years old. I have lived in fear and now these are accelerated by my body rn. When I was 18, I had a significant allergic reaction doxycycyline which endangered me. I have seen my body falter and self diagnosed many times in fear and confusion. I am lost and have felt so much shame for things out of my control. I have not felt young in years. I do not think I will know what that feels like. I have the voice of a teenager, the face of a 21 year old and the body of a 40+ year old man.
I feel weak and I have felt so much pain, paranoia and self hatred.