On a Merry Go Round

I have been suffering some weird balance problems over the last week and I can't figure out for the life of me what's going on. When I lay down the room starts spinning round and round and I feel nautious as hell. If I stand up too fast, or move my head too quickly, I get the same sensation and feel like I am going to fall over.

My cousin Tracy came to visit a few days ago, and on the day she left I started to feel very unwell and went to bed, which is unusual for me considering it was 4 p.m. I slept until 9 p.m. and woke up feeling absolutely awful. I could barely walk and only just managed to make it into the bathroom before being sick. I have made an emergency appointment to see my Doctor, but as is always the way, I am starting to feel better today.