Hi for about three weeks I have been experiencing periods of lightheadedness accompanied by weakness in my legs( rubbery legs ) and need to sit or lie down. The attacks last for anywhere from one hour up to several hours . I have never fallen while awake but have fallen from the bed when getting up. The falls always occured while I was dreaming. i am 77 yearsold, have always been active have good blood pressure and am not overwight . what are your suggestions for diagnosis and treatment? Thank you