I'm about the same age but I had everything removed at 29. I went through years where I could have cared less about sex.. The past several years things have changed. I've not done anything different (medications, HRT, or anything like that) but my sex drive has soared.. I still have days I could care less but they are a lot less. I think you have to take advantage of the days you are in the mood and hope hubby understands. Mine is great about it. On the off days, he can sometimes get me in the mood by giving me a massage or even helping me out around the house.
I'd try using the hot and cold as reasons to try new things like using ice when you're hot or warming a toy when you're cold. There are endless possibilities that you can do with this.
Sometimes a glass of wine will help with the blah feelings and help get me in the mood. My hubby plays bartender sometimes and makes fruity drinks that are so cool and refreshing.
Good luck!!!!!!!!!!!