hi so i'm a teenage girl, and at the end of march this year my grandma passed away. this sparked a lot of conversation in my family about illnesses and death, and triggered my health anxiety again. (i had it for a while when i was younger). 

since then, every day i have a different physical symptom. whether it be headaches or chest pains or even my legs/arms hurting. i've been to the doctor and had blood work and such, and everything's fine. but i can't get the thoughts out of my head. i constantly need to be distracted by my phone or computer, otherwise i'll think of my anxiety and it'll trigger a panic attack or just uncomfortable feelings. it's gotten to the point where i'm constantly on my devices, and my vision is getting worse because of it (i already wear glasses with blue light blockers).

honestly i just need advice, because even though i know nothing is wrong with me, i can't get the thoughts out of my head.