Is this phenomenon similar to brain zaps? I've experienced something similar but without the pain described on the wiki page about antidepressant discontinuation syndrome. Also I've never taken antidepressants, but those zaps occured always after taking too much chemicals at parties.
Stimulants, or rather the come down from them, are known to cause brain zaps. That's because CNS stims tend to mess with serotonin levels, which is what most antidepressants and anxiety meds are acting on as well, if they are SSRI or the newer SNRI types anyway. Brain zaps are hard to explain, but you know them when you feel them. A lightning storm in your brain that lasts a fraction of a second and by the time you feel it, it's already gone. Weirdest feeling ever.
