Some days ago I tried a white fine powder labeled as Ethylnaphthindate intranasal.
T = 11 am
T+10 fresh and cold sensation turns into sharp burning of the nose caverns
T+25 feel lightheaded and nauseous
T+60 good focus, somewhat psychedelic (could have been afterglow of dissociative use the day before)
T+2h chatty and bouncy, focus enhancement still active
T+3h = t another small line done, nose becomes cold again, gooey saliva
t+30 can't concentrate properly, increased lightheadedness, vertigo and flickering vision
t+45 more comfortable again, euphoric after difficult masturbation
t+60 feeling of fitting in perfectly, as if I was set in concrete
t+140 strong heartbeat, urination pressure
t+2h30min ate a wafer and drank tea without appetite, felt nauseous afterwards, almost vomitive with Cheyne-Strokes respiration, smoked two cigarettes, that gave relief for a moment, eyes want to be closed
t+2h40min repetitive burping, cold sweat
t+3h feeling better, comfortable head-space
t+3h20min stressed out again, begin to play a fast-paced fighting game, heartbeat goes up to 160 - 180bpm
t+4h30min played for an hour until I got a blister on my thumb, smoked another cigarette, eyes are burning, Cheyne-Strokes respiration
t+7h30min went outside at some point for a walk and for smoking, ended up wandering a long distance with short runs, that felt good
t+8h forced myself to eat something, nausea again
t+8h30min shaking uncontrollably, bruxism
t+10h going to bed, unable to sleep or even hold still for longe than 10min, uncomfortable and fast heartbeat
I sweated all night and found myself unable to even doze. The whole next day I had lack of appetite, pretty good stimulation and focus, despite my worn down status, appearance and mentioned respiration issues. In the following night I finally could sleep again, but still felt agitated and uncomfortable with any position after a while.
The high was good and long-lasting, but the late stimulation was prolonged in the same fashion and as nasty as stimulant comedowns tend to be. The substance also seems to be really strong. I already dosed cautious and still ended up rambling for two days and a night.