Hmm...this one is tricky. I'll do what I can to help. Keep in mind, aside from what you've told me and what I very vaguely know about what medicines can do to a sex drive, I am going purely off what I know, which may or may not be helpful.

I'm 19, so "the mood" is basically what you described in the beginning of your post...anytime, night particularly. There are times though that it's more intense...if something triggers a fantasy (such as a scene in a movie, which I'll return to) or some such, the "mood" strengthens into straight "horny," if I may be so blunt.

Speaking for me personally though, the thought idea of being with a partner, like say a wife or fiance or whathaveyou is a huge...I suppose trigger. I'm not at the point in my life where I'm actively seeking either, as I have a lot of groundwork to cover before that's a feasible reality (I will finish my schooling in its entirety before and become financially stable before I marry anyone, period). Going back to what I mentioned about movies, those rare sweet scenes between obviously loving couples put me in the magical "mood," regardless to explicitness. I'll also confess to a rather high degree of envy, but that's a whole 'nother can of worms entirely, and neither here nor there. Just figured to include it since it's a package deal.

As far as you go, as I realize my personal experiences might not be applicable, I would try to wait a bit...your doctor might be right, and it might just be your body readjusting to the medicine change. If it doesn't clear up within the given time frame, I'd bring it up again to your doctor, stressing that this is an important thing for you, and you do not wish to lose it.

I hope I was of some help. I wish my advice to you could be less vague and less "me" centered, but unfortunately, that is the best I have. I wish you all the best, and I hope you will be able to get this resolved.

My very best,
Harley