muscle spasm
"Ok so I got Flexeril 10mg prescribed from an ER np, after going through ultra sounds etc. for what I feared was a DVT. Things came back nornal, so she gave me this.

I took one the next night, and about 30 minutes later, started nodding off...but this wasn't your normal dosing off. Everytime I would feel myself dosing, I'd start hearing voices. These sleepyness/auditory hallucinations were the first effects. 
I didn't even notice if the pains were still there because I was constantly fighting to stay awake because the auditory hallucinations started to really scare me.

Probably about an hour or so later, I completely knocked out (around 11:30) and didn't wake up until 1 pm the next day. Won't take this ever again
"