I am on Effexor and felt the lack of sex drive in the beggining, too. It went back to normal after a little while.

May I suggest that you try getting it back on with your husband slowly, like you're doing with your chemical imbalance? Maybe, I dont know, start kissing one day. Just kissing. And then you will remember the love and desire and before you know it, the two of you will be enjoying each other's love again. :-)

In the beggining it might take longer for you to reach orgasm, but that can add to the moment - it can be fun and involve a lot of foreplay.

Please, don't be afraid. You are going to get over it, I'm sure :-)