Im 18 and I get aroused but hardly ever want to act on it. My partner gets aroused much more often than I and I, more often than not, say no even if she arouses me as well. We've been together two years and it's becoming frustrating to both of us. I'm not sure why I do it. I know that I always "don't feel like it." we participate in sexual activity roughly 4-5 times a week. There are just days when I absolutely don't want to do any sort of sexual activity. My partner has even went as far as to be nude and on top of me only for me to continue to say no. I can't help it, though. I just honestly have no true desire for sexual activity. Could this be a form of sexual anorexia? What should I do to help my relationship? Am I too young for sexual Health meds?