Daily tension headaches, brain tumor?

Hi,

So for starters, I’m 20 and have a severe anxiety disorder, and constant worry about my health. For the past month, I have been having bad tension headaches at the back of my head, rotating between the front and back of my head. I also have nausea sometimes, but I’ve had issues with nausea since I was a kid.

My most recent symptoms are random tinnitus and sometimes I get full body aches kind of like a fever. The headaches typically start around 2 PM and get better when I lay down. Sometimes I’m sensitive to light and sound, sometimes I’m not. I’m supposed to have a neurology appointment on Tuesday and I’m going to ask for an MRI for peace of mind. Sometimes the headaches happen in the back when I wake up, but rarely. The headaches are like daily. I have always heard brain tumor headaches get worse when you lay down, which seems to be the opposite for me.

Can anyone advise if I should be freaking out or not? Sorry….