Just wanted to let you know you're not the only one on here in this boat. My girlfriend has chronic health problems, no diagnosis in sight, just more symptoms every month. We're coming up on two and a half years of celibacy due to her health issues, and the other side effects that come up from such a prolonged lack of intimacy.
I really feel for you, and can empathize with everything you said. Let me know if it would help to chat with someone who knows where you're coming from.