So I took 230mg mdma pill about 2 months ago and it gave me hppd but my symptoms were that I had almost no symptoms at all during the day: I had to really focus on some white walls to see something weird and as I have understood we all see a bit of visual snow. but when I went to dark places everything started swirling and I couldn't see anything. I saw lights and movement and hallucinations were really strong. That's why I believe it is hppd. Then yesterday I took like 30mg of MDMA just for fun with friends and now I can clearly see that even that small amount has boosted my hppd because I have quite heavy visual snow right now. Does this go away? I would just like to hear your thoughts and stories. This is bothering me and I'm not feeling too well.