I've been involved in healthcare and research too for over 40+ years, so I know a thing or two on the topic. When it comes to 'syncopal episodes' or the like, I have had personal experience. I have the real Meniere's disease, not just tinnitus (noises in the ears). I became totally deaf on the right, when I was 35 yo. There are a few symptoms of the disease (no longer tinnitus, which happens at the beginning), I would become like a drunken person, unable to walk straight. Later, I began having 'head drops' when I suddenly hit the ground (could not stretch arms to save myself either). Then, I would have to sit there for a while and later go to bed and sleep it off! In short, the episodes feel as though the blood in the brain goes down to the feet and bingo! I can sort of tell by the feeling in my head in the morning, if it is lingering in the background. I usually don't go out or travel far if so. It can hit suddenly...like the time I was in Sicily, at the heritage site of Agrigento, where I hit the ancient rocks, headfirst and I draw a crowd of like thousands around me. My heading was bleeding a lot. One man in the crowd, reached out and pressed a large hankie on my forehead and pressed hard. Turns out he was a neurologist, spoke English. People wanted to lift me up, after I told him I had Meniere's he said, "leave her for a while." I have a house on the mainland Italy. My daughter had to do the drive back, after the ambulance took me to a hospital. It turned out that I broke my ankle on those rocks. My face squared the maid at the hotel the next day! The positive bit of the story is that we got to travel first class by air and never had to check in or pull any of our luggage! I hope you get to the bottom of your dizzy, or light-headed spells. Interestingly, Meniere's is a medical phenomena. Until recently, there was little research into this crazy disease and they still are not sure what causes it. All I know is, I thank God I have 2 ears, rather and just one, but it sure did affect my social life, especially in noisy environments, because I cannot always join in the conversation - words can sound different to what is actually being said. Your problem could be vestibular also.