Could be the COQ10. Do you know what your BS levels were before starting?
Mine is usually around 84-98 after eating and I feel fine.
Normally I am mid 80's after fasting for 8-12 hours, but its been a while since I did a fasting blood test, I'll do one in the morning. It was 82 today like 45 minutes after a candy bar and a full meal and that was the first time I felt somewhat normal all day, and that was my third meal. I had been taking the COQ10 at bed and every morning I would wake up in a cold sweat and be very lightheaded/not myself all the way until lunch. Then after eating, I would feel like myself again.I had been feeling very, very lightheaded towards the end of my workouts as well. So tonight I had a banana, power bar and a big gatorade and never felt bad the entire time. After seeing what I saw today, I am fairly confident it was my blood sugar dipping too much.