Yes, 12 hours is not an exact time. As with most other drugs
, never do they work exactly the same for everyone. As this is swiy's second experience with Adderall
, perhaps his body is still adjusting or perhaps this will continue to happen. I imagine the heart rate is a product of his stress-- yes, Adderall does affect heart rate but even if it lasted longe for you it shouldn't be revving your heart too much at this point. "A few heartbeats" is nothing to worry about, heart rate can fluctuate significantly in response to various events even while totally sober. Swim
ALWAYS has trouble sleeping after taking Adderall, even 12 hours after. He thinks that if you dont get to bed around the time when it should be basically out of your system, and you continue to stay up, it makes it even harder to sleep. Like the other poster said, tell your doctor and consider going back to a higher strength IR or IR twice a day. This is nothing to worry about, perhaps try XR one more time a few days from now and if the same thing happens, definitely isn't for you.