extreme sensitivity to adderall (and other stimulants)

[paperstreet]

How is it possible that swim has taken a 10 mg adderall XR at 10am (along with another 10 mg of regular adderall at 3 pm) and is still feeling the effects 17 hours (its like 3:30 am here now...) after initially taking the dose? Swim was extremely tired and hungover this morning right before taking the mere 10 mg on top of that, and still he has not eaten hardly anything all day. Swim also drank a lot of caffeine but that was at 11 am till 3pm, not a drop since.

This also happens after swim takes a 36 mg of concerta. Swim will not be able to sleep for about 2 days no matter how fatigued he feels.

These amounts seem miniscule but for some reason stimulants last FOREVER for swim. This sounds like a good thing but swim really needs some sleep especially after taking stims.

Swim normally has trouble sleeping, but this is rediculous... swim feels like the adderall is going to keep him up for a long time to come and is very frustrated...