i always feel like iam like in a boat like in water like iam going to fall and somehow dizzy i been dealing with this almost 2 years and doctors still can figure out what it is???

its like a swaying sensation like if iam in a boat even thoug i never been in one i feel with vertigo even when iam sitting down when i go to a store and iam walking on a aisle i feel like the aisle is too long and i feel somehow confused especially with the bright lights i have been cheked from my ears like 1000 times a doctor told me is migraines i been told is from my liver i really dont know what to think no more i can work becuse i feel like iam going to fall sometimes is so annoying that i can not enjoy life the way i used to.