I started taking Zoloft 50 mg two weeks ago and Vyvanse 20 mg at the same time and found that these doses weren't working for me so i went back to my psychiatrist last week and she increased my Zoloft to 75 mg every morning and my Vyvanse to 40 mg every morning but now I'm getting headaches every day and i don't know which medication it's caused by. Would If be safe for me to to decrease my Vyvanse back down to 20 mg and my Zoloft to 50 mg each day because at least at those doses i wasn't getting headaches every day and I cannot get back to see her until next march . Anyone else have this side effect from either of these medications? Any advice would be greatly appreciated.