From last 5-6 days dizzy all day long, feels like swaying whenever on feet.

Get checked. infections, usually viral, in either the middle ear or in the TM joints can cause dizziness. Frequently acute onset. Get checked to rule out other causes.
Sounds like you. are describing vertigo, most commonly caused by labyrinthitis. Try OTC antihistamines and decongestants, and, if it still persists, see a doctor for definitive diagnosis and proper treatment.