Ok guys...little back info...I guess you could say I have ADD, I don't focus for shit, and adderall really helps me in school....but it seems school hasn't been in and I don't even move back into my dorm till the 20th, so recently (4 days ago) I begin taking adderall...for fun. It started on a friday night, in all i took 100mg, and it was great. Then when i feel asleep i slept great, and woke up fine. I then took 75mgs total on that saturday, just having fun. On saturday i noticed my heart rate...it has sped up and caused me to start to turn red, it doesn't hurt at all but its just a little worrisome. Finally jump to sunday, I took 25mg in the morning and nothing else, but the heart thing continued. Monday morning I take nothing (today) and my heart is still doing the same minor thing. Is this normal guys...for your heart rate to be high for a few days after abusing the amphetamine?