Why can't I get wet? Is it a hormone imbalance?

I've had the same problem in so many words, my boyfriend and I have been together for almost 11 months now and in the beginning I'd get super wet but a few months back I couldn't get wet, I would get wet just a little then it would just dry up, (sounds gross) but it was because we were having sex very often, try a little lube, something new, that's what we did and I became "normal" again(: hope I helped.