I don't think your husband was being insensitive, men are do-ers (in general, I know my husband certainly is!) and when presented with a problem their brains immediately go to 'how to solve/fix/get beyond this'. You have a problem, whatever it is, there must be a solution. When I read your post I actually thought the same thing
. Talking about it doesnt help, commiserating won't heal your body. If that is what you want from him (or us!) then say so at the outset, that you just want a hug and encouragement, so you don't get reactions you weren't looking for.
Sympathy has a place, as does a listening ear, and they are important. But in the end, they aren't going to improve your health - Action will!
Take action, change this for yourself, save your health while things are still in good shape to be turned around. You've lost some weight already, that is AWESOME! Keep plugging away at it and shed those pounds