Racing heart with high blood sugar
Iíve been doing well controlling my Type II for a fairly long time now, with a strict low carb diet, exercise and my nightly dose of metformin.
However they other day I made the mistake of deviating from my diet and splurging on a brownie for dessert while out to dinner with some friends. Very reckless in retrospect, I know.
It seemed like I started feeling the effects of that instantaneously. I became lethargic, collapsed onto the couch and into a deep sleep (almost felt like I was drugged) when I got home. When I woke up around 2-3 hours later my heart was pounding like it never has before.
I honestly felt like I was having a heart attack or something. I checked my blood sugar and it was 160. I canít remember exactly how long after my indiscretion this was, but it was definitely over 2 hours so I suspect I could have been even higher earlier in the evening.
By the morning my fasting sugar was 110 which is a good 15 points over what it usually is when Iím following my routine diet. But the racing heart symptoms had passed.
So Iím wondering - is a racing heart a normal symptom of high blood sugars? And if so, what causes this exactly??