Worried about Brain Cancer

am worried I might get a brain tumor please help I am 24.

I got drugs stuck in my stomach for 7 months. Everytime I ate I got a really bad drug reaction causing extreme brain attacks disabling me. Dizziness, extreme head pressure and pain, like a huge drug crash. This went on for 6 months.

At the Same time I had a blood flow problem to my brain. Would make my head hurt all day 2-3 hours of sleep per night. Massive head pain from combination of both. Head always hurt chronic inflammation.

I would stay up all night because my blood flow problem prevented me from sleeping. I was also extremely stressed from lack of sleep and having uncontrolled drug crashes making my head feel like it was gonna explode.

Disabled me from work and school

Some things you say don't make sense , I suggest the most common blood and urine tests to start ,and rule things out . Next you need to see a psychiatrist because you sound like under stress , anxiety and maybe depression.