I Have This Chronic Vertigo Sypmtoms For The Past 2

I have this chronic vertigo sypmtoms for the past 2 yrs...i feel dizzy but i never fall..i feel i am moving when i am not..i feel i am going to fall..if i stand i have to hold something to stand still for long time...cant close my eyes while in shower..always close one eye wash one side of face and then the other..wheni lie down its really bad until i fall asleep with great difficulty..once i wake up and go back to sleep again its not that bad..if i walk a lot or run on treadmill i feel like i am floating in air and will fall..since then i stopped doing cardio workout..cant sit still sometimes and pay attention in class or stare something..all these activities will make me dizzy