I'm not saying you're a nymphomaniac at all, but there was a moment in the Movie A two volume set called Nymphomaniac, that took you on a sexual rollercoaster, and then, all of a sudden, she couldn't enjoy it and her life felt empty. It was an addiction that could on longer be fed and it was like a right arm being cut off, she wasn't herself anymore. I use to be hypersexual myself and once i was put on an SSRI i lost my entire libido and it was so frustrating because it was a coping mechanism for my depression that boosted my mood, it was the sure fire way to give me Euphoria and cure my depression for the rest of the day. I can give you hope that as soon as i got off the drug my sex drive returned, but lessoned to a more normal desire. I'd describe the experience as me being under dark water where my senses were all weakened, and there being a barrier that i just couldn't reach anymore.

I think a therapist might help, because this seems situational and not biological, even though those two things often intermingle. Don't give up hope, I think there is hope, you just need to see sex through a different lens maybe. I do recommend the movie Nymphomaniac to get the full confession of a sex addict. It was hard for me to watch because i could relate so much to it.