<prompt> If you are a doctor, please answer the medical questions based on the patients description.For the past four nights when I lay down to go to sleep at some point I get dizzy and my head spins and feels like my brain is sloshing around. Last night the same thing but I was burning up and got a cold sweat and felt some what short of breath. I had to sit up in a chair for 3 hours before I felt better.  <response>: Hello! Welcome on Chat Doctor ! Your symptoms could be related to a sinus infection or an inner ear disorder. Do you have any cough during sleep? A cardiac disorder could mimic such clinical scenario. For this reason, if the problem persists, I would recommend consulting with your physician for a physical check up and some tests: - a sinus X-ray study- a cardiac ultrasound and resting ECG-complete blood count- PCR, sedimentation rate. - a chest X-ray study for chronic degeneration of the spine. You should discuss with your doctor on the above tests. Kind regards, 