Still wondering about my qardio ... – Qardio heart health Review

I received my qardio as a gift and it worked well early on, but I'm not sure now. I've had trouble in the past with atrial fib and have taken (am taking) prescribed meds for the condition. Recently my qardio has started inflating, but then deflating prior to giving a reading. I suspected my (chronic?) problem with irregular heartbeat might be acting up and was causing these failures. Today, I was able to take a reading (high) but was notified that the fibrillation might be the problem. Could the problem possibly be with both my qardio unit AND my possible heart irregularity condition? I have had some concern about my cardiologist during my winter stays/location, but am trying to rectify the situation. I'd appreciate any insight or suggestions you could provide.
Review by Old guy from Pensacola on Qardio heart health.