HPPD since 1973 at the age of 15 after just one trip on LSD. When I woke up the next day I felt like I hadn't come completely down, still saw trails and felt detached from reality a little bit. I also felt like I couldn't focus correctly, I wasn't sure if I was seeing double or not when looking at certain things. Everything just felt off. I assumed this would fade away in a day or so, but it didn't, it never did. Back then I played a lot of basketball, after this I found it difficult to follow the ball, doing so would make me feel lightheaded and after a while I would start to feel like I was going to pass out. I would have to sit out for a bit and then start playing again, but I would have this feeling that I can only describe as a dull Dizziness. I later came to realize that I was feeling intense fatigue. As the days and weeks went on, I started to need to sleep during the day to recoup, otherwise this feeling would just get more intense. Sleeping refreshed me enough to continue with the day and into the night. I returned to heavy use of Pot and Alcohol in attempt to drown out this weird feeling, but it didn't help as I found getting high no longer felt good, it just seemed to intensify this bad feeling. Being a young kid, I was afraid to mention this to my parents or a Dr. I just assumed that the LSD had caused some kind of damage and I would have to learn to live with it, but that became increasingly difficult as the bad feelings intensified and I started feeling my heart beating chaotically which led to panic attacks and these led to depression. It all got so bad that 7 months later I finally told my parents that I was feeling "dizzy" and they made an appointment with our family Dr. I didn't tell him anything, I figured he's a Dr and he'll do tests and figure out what's wrong with me. As it turned out I did have anemia and low blood pressure and was also dehydrated from not eating and drinking properly. He gave me a prescription for Iron and B vitamins and weekly B12 shots and I actually started to feel a bit better. But that underlying feeling never went away, and the visuals never ceased. Eventually that feeling intensified again and my Dr not knowing what to do felt maybe it was depression and panic attacks causing all my symptoms after the other issues had been corrected, he sent me to a Psychiatrist who was a complete moron, he was trying to insinuate that my problems were likely due to an abusive father (which couldn't be further from the truth) so I stopped going to him. My family Dr recommended another Psychiatrist and the minute I walked into this guy's office he knew exactly what my problem was! After reading the forms I filled out and after asking me about my symptoms (I didn't tell him about the visuals because I thought anyone who heard that would think I was crazy) he looked at me and said "how long ago did you take the LSD?" I was shocked, how could he know just by looking at me and hearing my symptoms? He said "I see this all the time, you kids are born with healthy brains that your mother gave you and you go and hurt yourselves with this LSD, why?" He said he could tell by my eyes (when he examined me he looked into both eyes with a light and large magnifying glasses) He said they didn't understand just how, but that the LSD alters the way the brain processes sensory input and sometimes it doesn't completely reset to normal. This was back in 1973, and he knew something was being knocked out of whack. He said he could prescribe tranquilizers and/or antidepressants but that they would only partially temper the symptoms. He said he has seen many kids like me helped to either total reset to normal, or enough where they could lead a normal life. He said the thing that allowed the reset was ECT, which of course scared the crap out of me, but he said it was up to me. He said it was the only thing he knew that worked and it worked quickly, so I said ok let's do it. I had to be put in a hospital, which to my surprise was filled on one entire floor with teenagers all with the same symptoms as me, including two kids I knew from school a few years back. I couldn't believe it was this widespread! Anyway, I went through 8 of the prescribed 12 ECT treatments, stopped because my Mom couldn't bear to see me go through anymore, I would be out of it for a day or two after each treatment. But you know what? It worked! It wasn't 100% cure, but it got me back to where I could function and all of the symptoms lessened, the weird feelings, the visuals. To this day I wish I had gone through all 12 treatments because just maybe I would have been completely back to normal. As it turned out, over time some symptoms intensified a bit, but with benzodizepines and the newer antidepressants I was able to cope. Then in 1998 I read about Clonidine and had a Dr who was willing to prescribe it and it helped a lot. To bring and end to this long post, I still have HPPD til this day, and I still feel that weird Dizziness and fatigue, but I was able to work most of my life, got married, had children and now grandchildren. I do wish I had never taken that LSD (which I didn't know it was at the time, we were told it was synthetic THC which didn't exist at that time) because taking it altered my life forever. But I survived and persevered ( I know others who weren't so lucky) and I'm still to this day hoping a cure or better treatment somehow is found. Any other long time survivers feel free to contact me, and newer survivers as well. We're all in this together.