I've been there. Talk to your doc... it could be medicinal or it could be situational. My doc told me that sometimes when we have a lot of personal stuff going on that would stress anyone else, the chemical reactions to that stress can lessen the effect of the meds.

BTW - I love your avitar thingy!!! Is that supposed to be a gecko? I am obsessed with geckos... I've had pet gecko's since I was 11 and my room is full of gecko "stuff" and I wear a golden gecko pendant on my necklace!