Wow, glad you are okay. You know they say that dead photographers have bad vision. As dead writers can't edit their work. So, I'm glad you caught it early enough. I've had a few situations that I've overlooked, only to get scolded by the ER doctor. Luckily those situations turned out to be Supra Ventricular Tachycardia. Or extremely high heartbeat that mimics an infarction. Hang in there and keep writing and shooting photos.