http://www.medications.com/effect/view/24733 lots of posts on headaches and muscle spasms, saw some reports of stomach issues, my question is, "Has anyone experienced if you stop taking the pill or miss a day, you feel as if someone gave you a benedryl or tylenol pm. Severely groggy, almost drunk like Mon, 25 Aug 2008 20:30:31 -0400 http://www.medications.com/effect/view/24733?item=11602 Probably because your body is short on sleep, and you didn't notice because you were on Adderall the whole time. http://www.medications.com/effect/view/24733?item=11602 Sun, 09 Nov 2008 21:28:42 -0500 http://www.medications.com/effect/view/24733?item=14318 i have headaches all the time even not on adderall and on it, more sleepy, and a strange muscle spasm in my leg http://www.medications.com/effect/view/24733?item=14318