it goes away on the diet but it does come back - honest!
Don't panic - the more you worry the bigger the problem will become and the longer it will take to relax back into your "normal" sex drive.
When you get to goal imagine the gorgeous underwear you can buy!
I feel the same I am only 28 and use to be randy but have not done it for months. I also wonder if I fancy my hub. It is horrid. How long have you been with him?