About A Week Ago, I Began To Have Dizziness When

About a week ago, I began to have dizziness when I bent down and tried to stand up. Then a couple of days later, when I went to bed and laid my head down I like if I'm trying to tie my shoe3s.felt a strong feeling of dizziness. It goes away when I close my eyes. I'm also having problems bending my head forward when I try to tie my shoes.