I have the same problem. Falling with new warning or tell. My ENT believes it is Meniers disease. I’m going for an MRI to ensure that it’s nothing more ominous. I have broken several bones. I have numerous scars and I’m bruised in almost every place, you can think (body attempts to instinctually protect you from a fall, even though you’re not realizing you’re falling. The last fall I had was getting on an airplane and I dropped right in front of the stewardess and the passengers behind, including my daughter,… I fell hard. I’ve read up on vestibular diseases, and I can’t find anything that does not state that you have vertigo or dizziness prior to the fall. Scary stuff.