I'm Tired

Today I'm dog tired. More tired than just having done a 12 hour shift. I called the doctors yesterday to see what my iron and ferritin levels were. Maybe I need to start iron again. True to NHS form, the sample seems to be lost.
Today I got up and went back to bed again. I laid there, fell asleep. Woke up and thought shit, when I get up I'll have to do housework. My OCD won't allow me to just let it go. Although I'm not hugely obsessive about it, it has to at least appear to be tidy and clean.
Why is it, that there's three of us living here and I seem to do everything? So I get up, shower, clean the bathroom. Open all the windows upstairs. Quietly despair at the state of BOTH their bedrooms. Ask Abby to vacuum downstairs (big mistake) she vacuums like a man. Three seconds and it's done. And looks no better. I pick up their breakfast stuff. Put away the cereal and milk. Wash up. Put washing on. Pick up the DVD'S from the floor. Plus numerous other crap from them.
Put away washing from Thursday. And wonder just what Abby did yesterday?
Am I wrong to expect some help? All I seem to do is work and wash and iron and clean. And I feel guilty for going out last night.
I just yelled at her to get dressed. It's 2.30. Danz is on a sleepover. Good. Nice for her but she's the only one who helps me.
The cats are crying for cat food. We haven't got any.
I guess I'm lucky. Least I feel valued at work.