Always Crouching

At time when I am flying I seem to float down this happens when I crouch (which is intentional) but i am not crouching even when i am crouching this will carry on to my other worlds. This may be my controller bugging out but one way I could fix it is by flying/fall gliding the saving and leaving but for some reason this time it not fixing it. When this first happened it was for one world in 1.5.2.