Hello In your case this type of vertigo or dizziness may be due to hyper acidity ( because you develop these symptoms just after woke up , so food of previous night may be responsible ) , tension or anxiety . However there are so many reasons of dizziness as Inner ear dizziness , neurological dizziness , medical dizziness & psychological . Other causes may be hyper tension or hypo tension , anemia , Hyperglycemia or hypoglycemia . But at present I would like to advise you take some antacid and wait for another attack . Be careful about food and if possible avoid greasy or oily food , junk food , chocolate , drinks with caffeine in them . If symptoms recurs consult a physician and get his opinion. Good luck.