I have just started the B12 Methylation Protocol and I can't sleep!! I am starting low and slow, so every 3rd day was taking mb12 injection of .15ml and Metafolin 100 mcg, plus some potassium supplements. One of these gives me total insomnia, as in I don't sleep the whole night even having taken sleep aides!! It only happens on those days and that is the only things I am doing different on those days. So has anyone else had this problem and do you know which supplement is causing it?