Cleaning house

I had today off because it's primary Election Day where I'm at. So I planned on cleaning my house. Every time I stand up I get light headed and start seeing black spots like I'm about to pass out. I forced myself to get up and make a quick breakfast. I'm still dizzy. I haven't done laundry in weeks because of it. My husband has done all the cooking and laundry. I haven't been able to sweep or mop. My laundry room is on the 1st floor of our house so picking up laundry and walking downstairs makes me feel so weak and tired.  Am I the only one who feels this way? I feel like a terrible wife so I'm trying to get a few things done but I just feel awful.