I have cardiomyopathy,chf due to 3 M.I's. When my valve, BAV, was replaced in 04 the aura headaches I'd had all my life went away. These headaches caused nausea and lights and a type of interference to move ,slowly, across my field of vision. Lasts about 30 minutes before onset of actual headache. I now have a problem,again, with the mechanical valve. Aortic regurg. and sclerosis. The headaches are back. hope my cardiologist has and answer and a fix for the valve.
I'm running out of time and patience.
Best To You,