I don't think it's u, I think it's the weed. I'm 59, & I went through the same thing with some really shit dirt weed a few years back. Scared me too. Thought it might b due to my age till my friend came down from Pa & smoked some really slaming shit with me. Your friend may be right about insecticide, or maybe it wasn't dried/cured properly. When that happens, you can get fungus growth on the weed & have different effects from it; or so says something I read it High Times years ago. I'm a stickler when it comes to drying/curing what I grow, so I've never had that problem with my own grow. The problem I'm having is just getting weed. Can't find any old heads anymore, & the younger one's say shit like, man! I can't sell to you! You know my mom! Here lately it been, you know my GRANDMOM! The kids now a days know nothing of old hippies. I'm ready to just slap 'em & take their weed. I haven't been high in about 6 months because of that shit. Its pissing me off!