I hate it, hate it when I tell my husband I'm not feeling well and he pulls out the "you should be in bed." I'm not an in bed person. I can't just lay there with my racing thoughts. I have to have distractions unless I'm asleep. >.< So unless I'm actually physically sick, I don't tell him when I'm not well. I often don't even tell him when I'm sick anymore.... he expects me to behave a certain way which is different than what I do.
I understand how hard it is without help. Try to work it out with your husband and figure out how to get help, sounds like he is usually supportive and probably just stressed. Maybe you qualify for help like at a county or state program. Hang in there!