Sirensong18, from what you've described of your body not being responsive, it is very likely that your husband has already noticed that something is off. I understand how it's difficult to talk about this stuff and how it's important to not make your partner feel that it is his fault.

Have there been any major life changes from the time you had a satisfying sex life to now? Anything that caused depression, anxiety, etc.? Other things that have absolutely nothing to do with sex have the power to considerably impact one's sex life.