After years of being followed with mitral heart valve dysfunction, I started have lightheadedness/ dizziness, which my cardiologist believed was not caused by the mitral valve problem. After months of increasing and almost constant lightheadedness, with even a walk across the room bringing dizziness on, I had a mitral valve replacement operation, which went fine. Now three weeks later, I have as much or more dizziness, now almost constant but varying in severity. Blood pressure is fine, blood supply to my brain is fine, and of course my mitral valve problem is corrected, and although I'll be seeing the surgeon who did the operation soon he and my cardiologist are now recommending I have a neurology workup.
Research hasn't shown me anything like my symptoms except for causes that seem to have been ruled out. I eat well, have a job I love, am not around any obvious toxic substances, and have no more stress in my life than the usual challenges of raising a teenage daughter. I am discouraged and desperate for suggestions on possible causes, and feel like my life has ended.