I too have been experiencing some HPPD-like symptoms along with some other shit like dp/dr after an md+mxe+nos session 3 months back.
I know exactly what it feels like, the thought that you may be stuck in this state sucks.
Are you just experiencing anxiety or full blow dissociation(dp/dr)? Apart from supplementation, what measures have you been taking to attempt recovery?
Mine was delayed, it didnt kick in till exactly a week after and the first month of it was absolute hell. I was so dissociated that I felt like my own mum wasnt real. There were nights when I just cried because I thought I was going full on mental. By month 2 things started to improve but only extremely slighty, more me just getting used to it but I started to feel slightly less dissociated. Now, exactly 3 months and 1 day has passed since I took the drugs and im feeling about 40% better. So theres still a long way to go. Do I think ill ever get back to 100%? Not sure, but im trying to stay positive. At least the walls have stopped breathing for the most part and the dizziness has clamed dow . Apart from a heap of LTC symptoms, my HPPD symtoms that remain are; light after images of bright lights and bold text against contasting backgrounds and mild visual snow. Im mainly working on my anxiety now so I can remove the depersonalisation.
So the main thing is, what have I done to combat it.
1. EXERCISE. I Cant stress this enough. Exercise promotes neurogenesis by increasing BDNF. This is going to help your brain grow and repair itself and promote any chance of recovery. I go to the gym 3 times a week and do a full body workout comprised of mostly compound lifts e.g. deadlifts, bench press etc. Then every other day, I run at least 5k. Build yourself up, start slow, any exercise is better than none.
2. QUIT ALL DRUGS. The amount of people Ive seen asking why their HPPD isnt going away and theyre still smoking pot! You need to abstain from all drugs, including legal ones. Ive quit everything including caffeine, alcohol and nicotine. Its just a no brainer man, anything that effects neurotransmitters is potentially effecting recovery. I know this sucks, Id absolutly kill for a coffee and a cig but id rather go for recovery haha.
3. Diet. Cut out all added sugar. No sweet stuff, no fizzy drinks, cola...Try to eat a whole foods diet. Fresh veg and fruit, some meat but not loads and not loads of shit meat either. I study nutrition at univeristy and im an avid believer in plant based diets, which I follow about 70% of the time. Do some research, give it a go, it may or may not be for you, but theres plenty of research on its effect on mental health. This ones obvious, just make the right choices. Doesnt mean you cant have a treat once in a while though. Drink plenty of water too.
4. Practice things to eliminate the anxiety. E.g. meditation. I was very skeptical of meditation at first but when i bother to do it, I find it very relaxing. Same with yoga. Im still trying to do these things more often! Look into breathing techniques too.
5. Im gonna go against some of the advice given already, and im quite surprised at some of the terrible responses too... dont bother with the doctors yet. HPPD isnt really a well understood condition and they may try and say youve got some sort of drug induced psychosis or its just anxiety. The last thing you want to do is at this stage is to start taking ssris/antidepressents. People have got hppd from ssris. You need to let your brain heal naturally. But by all means, go to the doctor if you feel you want to have, for example, a blood test to rule out anything else and put your mind to rest. And also bringing me onto my next point...
6. Try and get some talking theropy. Ive heard good things on CBT and im working on getting this myself. Im currently having simple talking theropy at uni due to a bad breakup last year and its helping that I can also discuss whats going on currently with my mental health.
7. The only drug I would recommend taking is a benzo. I always carry valium with me but I rarely take it. Its just incase I slip into bad dp/dr/anxiety and it calms me down. I normally take 2.5mg and its enough just to take the edge off. But I take it only as and when I really need it. The last time I took it was 3 weeks ago and thats because I had a presentation at uni. Benzo addiction and withdrawal is not something you want to get involved with so if you do manage to get some, please dont fuck about with it.
So yeah, try and do as much as you can to recover and try and stay postive. I know how hard it is and sometimes I even forget this myself. If im feeling really bad I stick my running shoes on and go for a run. It even makes me feel worse for about 30 minutes after sometimes but then I tend to feel pretty good for a few hours. Give it a go.
A lot of reports seem to imply that this goes away for most people and its rarely a life long condition. Although it may persit for months or years before you make a full recovery. You can only find out by waiting and hoping as I am doing the same. But remember, its the anxiety you need to work on.
I hope this post helps you, and if you want to talk further about anything. Please feel free to inbox me.
Best wishes,
Martyn