Any idea why this is happening?

Divett
Okay, so I've been with my husband for 7 years and married for 4years. When we were dating we both love to get physical all the time and it felt good. But lately I don't feel any pleasure any more :/ is that normal? He used to not want to do it as usual as before and would tell me he felt molested when I would try to do something and now we are getting "back on track" but it just doesn't feel good anymore. Do I tell him? Or what can I do?