Abbot CGM Problems

Last night I ended up visiting the ER because my FreeStyle Libre2 said my blood glucose was 41 mg/dl. I tested 117 at home with a blood meter, but I was feeling kinda funny so went to get checked. They checked me in the ER at 122. I started telling them my story and they tried to nab me. Barely escaped! Yesterday morning I started getting AFib around 9:30 am. I woke up at 6:30am, which is pretty unusual for me, and probably a little stressful to my body. I've been doing 20:4 and 5:2 intermittent fasting, and had been fasting for about 36 hours, adding to the stress. I have medicine for the AFib, but didn't take it right away. I've been using mechanical methods for Hiatal Hernia to get the AFib to convert back to normal. I purposely stick my stomach out, jump up and down a few times, and reach up under my left rib and tug my stomach down a few times. These usually do the trick, but this time were a no-go. I took a small amount of medicine each hour, up to the full dose I'd prefer to take at around noon. I finally converted back to normal rhythm around 1:30 pm, so about 4 hours with heart rate around 160.