Topiramate
"Was given this for headaches and spent first three days sitting in the back of my closest crying.  I couldn't stand noise, more than normal, couldn't stand, light, couldn't stand anything touching me. Felt like my fingers and toes were on fire.  Would've rather had the headaches.  I drank so much water trying desperately to flush this from my system and refuse to take the fourth dose.  Not the medicine for me."