for about 3 years i'd been doing dxm. for the last 2 years or so of that run, i'd been doing it on a very regular basis...about once every 2-3 weeks. during that time i was taking high 3rd to mid 4th plateau doses. i finally decided to stop with dxm after about 3 years because i couldn't get high anymore without getting sick. towards the end, i wouldn't even trip on a normal dose. i would only get a severe headache, high blood pressure, high body temp, and vomit on doses that used to get me tripping hardcore. i tried doing higher doses, but that only made it worse...thats why i decided to stop, cause i figured it was getting bad for my health. anyways, towards the last year of my dxm use, i started with different psychedelics...namely lsd and mushrooms. i noticed that when i was taking these other drugs, that i couldn't get any real trips out of a normal dose. its been 2 years since i stopped with dxm, and still i require high doses of other psychedelics to get any kind of a trip. i know that dxm is really bad for the brain, so i'm wondering if my past dxm use has any effect on my current psychedelic use. it just sucks to have to take a double dose to get a trip going. i'm wondering if my brain is really that fucked. anybody have any input on this? if so, thanks for the help. have a grateful day