Ocd or anxeity? Both?

i used to never feel like this until the day i sadly smoked mzrijuana for the first time, was sort of weird; after i smoked i passed out for 10 seconds and got back up from a little dream, i then started to freak out because i felt weird. I of course stopped and for a few days and weeks i was feeling dizzy and confused randomly,n maybe withdrawl? Later on a few months i did an all nighter then all of a second i started to feel weird like i did when i smoked and i got all nervous and thought i was going to die, i felt like i was loosing my self, i instantly thought a panic or anexity attack even though i didnt know the symptoms, i then devolped an ocd pattern where it felt i needed to do everything in 4 or else something would go wrong later on i started washing my hands before going to bed and making sure i never touch my priavtes with dirty hands or else the germs will be on me. Few months later i was in a car ride for 30 min then i stared feeling weird and dizzy like the day i did when i did an all nighter. I always have thoughts of something might go wrong or i always think the worse, i constantly think that i will die or that im going to go crazy. At times when i look back to what i did that day it seems like a blurr or maybe im just thinking that hard? I still wash my hands and shower before bed when ive been out. Sometimes i feel as if im not even here or that im crazy and i dont even know it!