Could not wanting to have sex be a medical or just an emotional problem?

I am married for 5 years. I don't like for my husband to touch me anywhere and I wouldn't even have an affair because I don't care to have sex with anyone. I am on pain medication and anti depressants for fibromyalgia. Any help with be much appreciated. Thank you.
I have had a hysterectomy just recently but the problems were there before that also.