Hi, My name is Marty. Last year I had triple bypass with an aortic dissection operation. I also have a-fib. I am on medicines now and they seem to be working. The year before my operation I would be at work and suddenly feeel very very weak in my thighs followed with a feeling of passing out. The feeling would go away after about 30 seconds and I was fine again. It started happening again late last year about 5 months after my operations. I must point out that in 2015 I lost my hearing in my left ear almost completely for a few months. My hearing is mostly restored but still not 100%. Might I have vertigo or something like that ? I am still overweight but my blood pressure is steadily 120/70. I exercise 3 x weekly at a cardiac rehab hospital. I don t sleep well. help