Wow, all of you seem to have the use of much more complicated powers of deduction than have been available to me for many years. Part of my HPPD/PTSD causes my brain to go into uncontrolled hyperactivity resulting in confusion and increased HPPD symptoms, when I go deeply into the scientific processes of anything, much less the highly complex mechanisms of fungii and other chemicals on the brain and body. I'm not trying to be a smart ass. I'm sure candidiasis has some relavence here, especially when related to LSD, which was originally derived from a fungus. For me there are so many outside influences that can increase my HPPD symptoms. Being tired or thinking too much are just 2. My Hppd showed itself 40 yrs. after LSD use following surgery and being in ICU. I had been clean and sober forever and in good health. So in my case possibly general anesthesia and severe stress may have triggered this. I haven't smoked pot for 35 years. I don't know. Why did my friends who took lots more than I did never have a problem? I do know that while my friends seemed to have fun relaxed trips. I freaked out on a level that was horrifying. There is bound to be something slightly different in HPPD brains. Can you tell I'm a little pissed? I can't drive or do a lot of things I used to enjoy. I feel like I'm not even in my body. I have meds that help, Neurontin and clonidine. Having a rough time right now because I just had surgery last week which has increased my symptoms as well. Thank you all for being there. I haven't been on this site for a while. Now with all this thinking I'd better go run some warm water over my head.