Robaxin 750mg

i took 2 of them last night, they are a muscle relaxant with the main drug Methocarbamol. so i took 1500 mg cuz i haven't been able to sleep lately. been staying awake until 5am. so i took it last night and now i feel really lousy and my jaw and some other joints just feel sore. at school, i took them off and on to fall asleep, but never had these problems. could it be the heat along with the Methocarbamol?

maybe im just fucked up but what are you talkin bout