The latest fear ive been having is of a brain tumor. nobody in my family has ever gotten a brain tumor that i know of and I am an otherwise healthy 22 year old white male and I suffer from bad hypochondria. the reason ive been having these fears is because my anxiety is peaking and it feels like my mind is all over the place sometimes. Also during the early evening late afternoon hours I start feeling tired like exhausted and for the past 2 days, ive had a random wave of nausea during the day that lasts for like 5 seconds and goes away. of course me being a sever hypochondriac, my first thought is brain cancer.