Two years ago, i got severe dizziness when i woke up morning from bed and then i stand and i saw the whole room rotates in a circular motion and fast.

Dizziness: If this was a one time event it is likely that you had some pressure on your inner ear, generally caused by pressure in the middle ear arising from a clogged eustacian tube that is caused by dysfunction of that tube or congestion usually from allergies.Many times holding the nose closed with the fingers and gently blowing opens it.If you still have the symptoms ask your doctor about epley maneuver.