Ok, so im 19, female, had epilepsy for 3 years, whats my chances of a brain tumour?

I am having an MRI next week but im actually really worried about having one, ive got all these weird things going on, extreme tiredness, feeling of not being real, heartbeat in my head with constant headache and all these are symptoms of tumour!!?!?!?! My epilepsy is controlled and i havnt had a seizure for 3 years but i often feel like im going to have one like auras but nothing happens. I'm just worried i have a tumour?