Hello! I have been trying to figure out this issue I have experienced while using vyvanse and adderall. I have the mirena, so i dont receive period bleeding, yet I have experienced sever cramps back ache and drowsiness! So I never know when i get my actual period....My adderall 75 mg 2 weeks out of the month does not work at all!(amphetamines do not work when there is a hormone spike from period symptoms)! My doc doesnt really believe me! Its very frustrating!! I am so drowsy during 2 weeks out of the months its terrible!! Anyone hve severe increased pms symptoms while taking adderall??I also am taking 300 mg of welbutrin for depression....