If I were you I'd tell her. I think she'll be thrilled it's working so well for you. She wants you to feel and function better and knows you know your body best! Tell her all the different ways you tried and your reasoning (which is quite sound) that you're actually better in the morning and trying the two in the afternoon made you jittery and the one in the late afternoon does not interfere with your sleep, etc. She'll really enjoy hearing, each person is different and medical people learn from the actual experiences of their patients! Bet you she thanks you! :-)