I Am A 43 Year Old White Male, With A

I am a 43 year old white male, with a history of HTN, Atrial Fibrillation on Sotalol and Warfarn and Lisinopril. I had a normal cardiac cath 6 months ago....I work full time as a funeral director...For the past week I have had three separate episodes of passing out. One time I was standing and fell to the floor... Twice I was sitting at my desk....Blood pressure was normal after episodes, felt NOTHING before events, no AFib or anything...I called my doctor and have and appointment in a week. thoughts???