used to have great sex- always interested, now not even interested

Sex Problems for Women

My husband & I used to have great sex with me having a lot of great orgasms. I could even have multi-orgasms and "squirt." Now within the last few months, I have lost interest in sex all together. When we do have it, I'm kinda bored, and it takes too much effort on my husband (holding "just that" position, etc) to get me to cum. I love my husband a lot and I don't understand the sudden change. Whenever I had time alone I would enjoy masterbating. Now, I don't even want to do that and I enjoy that as well. There's obviously something wrong. I have always been an extremely sexual person. For us it is very frustrating, but for me especially.

I have several medical problems. I have been on several medications and I don't think they have anything to do with it b/c it isn't a major listed side effect, unless maybe the combination of the medications is the cause. I have endometriosis but it is under control with Seasonal. Also, I have migraine headaches and have been taking Topomax for the last 9+ or - months. On July 25th, I was switched to Zonegram and I had a headache everyday since I've been on it. I called the dr and the nurse which I spoke to suggested that I go off it to see if it was the medicine. It was. Both of these medicines (topomax and Zonegram) are neural inhibitors. I am also taking Prevacid for acid reflux.

If someone could please help or offer suggestions it would be greatly appreciated.

Thanks