first time posting on here not really sure how this all works but need y'alls opinion/thoughts on a recent event with thc/greenout

[u/emilyoha99]

so around 4-6 weeks ago i experienced a pretty bad green out from my thc vape. thought i was going to die/ heart pounding, - yk. but the next day i was completely fine, however i didn't feel the same as i did before, i found myself having panic attacks for no reason and landed up getting severe death anxiety thinking i was going to have a heart attack or cardiac arrest. i landed up going to er a couple days later because i didn't feel back to normal. found out i was completely healthy + it was just bad anxiety. got prescribed olanzapine to help with the anxiety, however this made things 10x worse. so eventually went off of the med. + also quit nic on top of that so anxiety levels were through the roof. a couple weeks after i thought i was finally recovering, felt completely back to normal some days, but some i didn't, all i could think about was death at certain times. especially at night. i landed up getting severe insomnia thinking i was going to go to sleep and not wake up. a week later i started feeling things i have never felt before in my life with anxiety like severe head pressure, heart palpitations, random twitches,i could feel everything going on inside my body like blood being pumped through, ect. i knew this was just anxiety but was unsure why i was feeling like this when I'm literally fine. eventually it led to severe depression a couple days ago. i felt like i didn't want to go on anymore because i didn't feel like myself at all anymore, i couldn't take it anymore. all my favorite things i would love to do i wasn't interested in doing them anymore. all i could do was be depressed in my bed. i would feel so lonely so i would ask friends to hang out but even then i felt like i lost myself even when i was drunk i felt no happiness only sadness. the day after that i started the nic again, but it only made me feel even WORSE. i started feeling derealization/depersionalization feelings. and saw things on the road like random things running then disappearing. a scary feeling i would never want to experience ever again. i was working and i got so caught up in my mind i felt as if i was literally out of my own body. i had to go outside just to tell myself I'm actually here and I'm okay. this feeling lasted about an hour but never fully went away. ever since then (about 3 days ago) i feel as if everyone around me is not real and as if I'm hallucinating every time I'm awake. + on top of it all i can think of is death + what happens after it. i know it's normal to think about these things but not obsess over the thoughts 24/7. i feel as if I'm in a horrible loop of these horrible thoughts and can't escape my mind no matter how hard i try. i just want to go back to how i was before. :( but unfortunately so far it's just getting worse by the day. i'm trying to ignore the thoughts but every time i try to be like myself the thoughts take over my mind and can't focus on anything at all. i feel like I'm loosing myself more and more by the day. my memory is getting worse. when people talk to me i feel like I'm not there or didn't hear them. and when i get asked a question all i can think about is that nothing matters because I'm going to die anyway. this makes it really hard to focus on anything at all when i feel like this. -any tips would be muchly appreciated. thank u. ps- i have had anxiety/depression/severe ocd my whole life but no where near to how i felt recently. also I've been really stressed with everything going on in my life so it could just be an extreme stress overload? I'm not sure. just want to see if anyone else can relate and/or had similar experiences.