Just a brief history I have been on 20 mg Lexapro for around 5 years and the past year I've been on around 60-90mg adderall. Recently I was switched off my adderall and given 50mg vyvanse and 150mg wellbutrin XL. I've been feeling like crap a lot lately and after doing some research I decided to get a blood test done to see where my serotonin levels were. To my surprise I just got my results back and they are only a 5. The range is 21-321. Does this indicate that my Lexapro is clearly no longer working for me at that dose and maybe I should have it increased or go on something else? I have an appointment Wednesday with my doctor.