Off of just a 28mg pill? Really weird, you sure that was concerta you took, on erowid there are people who snort about 100 mg of methlyididate (the active substance), and nothing like that - loss of appetite yes, but nothing nearly like that.

http://www.erowid.org/experiences/ex...=Search&S1=114

Yeah, maybe you were allergic, or very prone to the effects. Drugs affect each person very differently.
larghetto Reviewed by larghetto on . bad concerta experience okay i realize now this was a stupid drug to take un prescribed...but this morning before the bus came i took a 27 mg pill of concerta that i got from a friend of mine...i know thats not a lot but when i got to school right when i sat down at the cafeteria my friend like looked at me and told me one of my pupils was like the size of a dime and the other was the size of a pin which kidna got me nervous cuz no one else i know whove taken it have experienced that...so i jst put my head down so now Rating: 5