yeah, this happened to me before. Twice, actually. Both times I took doses in excess of 1500mg, in coricidin tablets, no less (not recommended). I made the mistake of travelling within eyesight of people who had no idea wtf was wrong with me: my mom, once, and a friend's mom, a seperate time. In both instances, involved parties were immediately concerned, considering I could barely walk or respond to stimuli in any way.
I remember coming to awareness in the emergency room the first time, with my mom sitting next to me, and having no idea who she was or how I got there. Once she told me, I had a butterfly effect-esque moment in which the entire course of my day hit me all at once, and I realized I'd asked her who she was and how I'd gotten there at least a dozen times before. I then promptly forgot.
I was forced to drink large styrofoam cups of activated charcoal (that's what it's called, btw) in efforts to soak up the contents of my stomach. All I remember is it turned my teeth black, it turned my feces jagged, it tasted like absolute shit, and I had no qualm whatsoever guzzling cups upon cups of it as if it were delicious. I think I even laughed at the fact that I was drinking it, at one point, much to the dismay of the horrified doctor attempting to direct me.
I was eventually committed to a mental institution for this little stunt, because paramedics as well as my family were certain I couldn't have done this without having intended to kill myself (which was false). I spent about two weeks in this institution before being released on good behavior, after officials came to the conclusion there really wasn't much particularly wrong with me once I sobered the fuck up. It wasn't that bad; my biggest complaint is the food.
second time I did this is far more of a blur. I remember having some intense psychedelic experience listening to marilyn manson's mechanical animals album, though, in which I were some totally seperate entity on some bizarre adventure in outer space. My body was completely disabled and motionless throughout the course of this experience, collapsed in a friends' bedroom under the watchful eye of her entire family. They eventually got ahold of my mom who took me straight back to the hospital like it was standard procedure.
drank more charcoal, laughed a little bit more, had a few more butterfly effect moments...then took off running in a disassociative daze when I realized they intended to put me back in an institution. I was lost in the surrounding city for half a day or so before the dose wore off and I realized where the fuck I was.
fun times, fun times.