I don't have any idea what my blood glucose level was/is (how do you measure that?) and to my knowledge I'm not diabetic but I used to get the jackhammer heart thing when I first went to bed. It puzzled me because it was something I'd expect when exerting myself, not relaxing.
Sorry if that's a bit off-topic but your post made me realize it hasn't happened since I Primalized. Coincidence? I think not.