Drugs triggering Depersonalisation again?

I have depersonalisation disorder and it mainly occurred when I was a child (from about 6 until about 10) with the odd occurrence every now and again from then onwards. Recently, it has come back with a vengeance and feels (more like lack of but you get the point) much worse than it ever has. I am pretty sure it may have been triggered by some drugs I took at a party not too long ago. I bought what I thought was MDMA and took a large amount it. I have never had any problems with MDMA and my depersonalization so I thought nothing of it. However the effect of it was barely like that of MDMA and for the 5 hours I was on whatever this was, I was ridiculously detached from everything, had no physical or emotional feeling but also had extreme difficulty with motor functions and speech on top of that. One of my friends, who had also done a smaller amount of the same stuff, told me that it felt more like Ketamine than MDMA. We had a little chat about Ketamine a couple of days after and he has only ever felt numb and detached whilst on it which has made me question whether it is the cause of it returning. Ever since that night, I haven't been the same and it is like being 6 all over again, except worse. I am barely ever attached to the world or myself. Can somebody with a bit of knowledge on this sort of thing give me some advice and/or help?

How long ago did you take the drug and this start? If it was just recently, it may just take time to lessen. I know, comforting :/ Time was what it took for it too get a lot better for me. Triggers make the state come back. Drugs really stress out the brain/body so it makes sense the state would come up again.

Did something happen at 6 that causes the DP/DR? If you are aware of anything? It could be layers of stress and trauma. So maybe its coming up (through the trigger of the drug) to process old trauma. Time will lessen this though. You know that :/ You have lots of support online with this so its great in that respect. Lots of resources and people experiencing similar things.

First post here, but your post almost sums up my problem. I have always struggled with anxiety, but one morning after a rave everything flipped. I had been a regular MDMA user for about two months every week or so. I picked up from a different person this time only because it was early morning. I then smoked a little and became completely Detached from the world around me. I heard everything going on and knew everyone Could tell. I couldn't talk and strangely enough it didn't bother me at all! I just watched everybody wide eyed and muted. That was a year ago and I have had episodes of this sober about ten times and EVERY time I smoke. I hope my experience helps atleast know you are not alone! I also am a strong believer in marijuana over xanex or ambian, so I'm having trouble dealing currently.