I was, but they found I had an open PFO. Have had it closed and don't get as many but big ones every now and then.

Patent foramen ovale PFO Closure Patent foramen ovale (PFO) is an embryonic defect, seen in up to 25% of adults,¹ that has been associated with increased risk of ischemic stroke of unknown cause. It is defined as an opening in the septum between the atria that acts as a conduit for emboli from the deep veins of the pelvis or legs to the brain. Patent Foramen Ovale and Stroke | PFO Closure www.pfostroke.com/us/hcp/pfo-closure Sorry it's taken so long to reply. Here is some info on the PFO.