There is a movie about a women who sees a murder on a bridge and then her phone rings and the guy chases after her and throws her off the bridge and as she falls she hits her head. Then later she is found and put into the hospital and she doesn't recongnize her family and friends faces and the doctor would leave and come back and have a different face every time and that's how it was with everyone. Any ideas!?

Sounds like Faces In The Crowd (http://www.imdb.com/title/tt1536410/).