Ever have one of those days?

Well I feel like I keep having it over and over and over again. I am stressed. I am stressed to the point of being ill. I have a constant headache, my stomach feels like an acid vat, I have sharp pains in my abdomen and I am a mean mean person. I have been yelling at my kids on a regular basis. Sleep battles are occuring nightly and I am exhausted. I am getting 5-6 hours of sleep/night, I eat my dinner standing up at the sink while I do the dishes and instead of playing with my boys I try to distract them so I can do laundry or pick up the house or whatever. I feel like a wire pulled taut and I am afraid I will snap. I'm constantly worried about money and since I do all of the bills I can tell E we are broke, but he just doesn't get it. Every morning I wake up infuriated b/c E has left the lights on overnight, all I can think of is the energy bill. I lost it when he turned on the heat even though all of the storm windows were not in. I don't know how to get it acrossed to him that we are drowning in debt. And pissing me off more is the fact that we owna rental unit that we could turn around and sell. It obviously would end that mortgage, it would pay off my college loans, 1 credit card, our car and a small personal loan. I am fairly certain it would also give us a chunk of money to invest in our retirement. He won't consider it b/c his parents don't want us to sell and to him it would mean we failed. I understand why we keep it. Let me tell you, in 16 years we will be doing fine, but in the meantime I have to make decisions like forgoing diapers today until E's check goes in tomorrow and hoping the IL's don't notice the boy is wearing swimmies.
We make decent money, we shouldn't be in this situatiuon. I never wanted to become this person.