Depressed

I miscarried, for the second time. Doctor said basically he won't do any testing until I lose weight. I don't over eat and have slowly gained weight unexplainably in the last 5 years. Both sides of my family have thyroid problems and my doctor says I don't because one time he took a test and it was low end normal. I hate doctors I hate myself and I guess I'll have to just have dogs for the rest of my life