Today I woke up, and as soon as I sat up my head was spinning. I got up and felt dizzy, faint, and sick. I went back to bed to lie down and the feeling subsided. I tried to get up again. And the feeling came back- I tried to shower and felt like I was going to faint at any moment. I went back to bed and had a sick bag ready.
I've spent all day lying in bed - I feel okay when I lie down but dizzy and nauseous if I even sit up. It's peculiar and I've never had this before. Any ideas?