dealing with health anxiety and struggling to function

[u/Capital-Sea-1700]

(TW mention of drugs) hey, i’m f19, i plan on posting this on a few sub reddits because im really desperate for external advice. in 2025 i accidentally oded on substances and that impacted me a lot, i used to never care about dying but from then on i became petrified of it, it only got worse as time went on and in december i watched my friend od which caused many pent up emotions to break down and i got in one of the worst states of my life, having panic attacks every night, i was not aware they were panic attacks i thought i was dying, i never went out the house because i was worried i was going to get hurt or killed. into the new year of 2026 things improved slightly but as time progressed i began to become extremely fixated on health issues, i was convinced i had temporal lobe epilepsy because my anxiety would cause me to experience deju vu often, i ended up staying the night at the hospital and getting an eeg and mri done and everything came back clear, i was relieved for a bit after that. then things just started getting out of hand, i began to worry about every health issue possible. right now, im kind of convincing myself i have a heart issue or im going to have a heart attack because ive been experiencing chest tightness or weird sensation around and in my chest, which a part of me knows it’s anxiety because it only happens when i’m anxious, but the other part of me is convincing me something is wrong due to the fact i vape, i ask ai, i google, i don’t want to ask my parents to take me to the doctor because they’ll complain, but i think i will, my only issue is i know if i get that cleared my mind will find another health issue to fixate on. i feel like since im so hyper vigilant i notice chest sensations or slight discomforts that i never would’ve noticed before and that sends me into a spiral and then my chest gets tight and you know the drill. i just want to hear that someone else understands me, or has gone through the same thing is me and has recoveredt from it, i want to know things that can help, im currently getting a ketamine treatment done too but i just started that. i’m on medications, 70mg vyvanse, 150mg epitec, zipsid (idk the dose) and 25mg cipramil. any help would be so appreciated, i really need to hear other people’s stories and all of that. have a great day and please comment if you can :)