its highly possible,even more so if you're in the early stages.
One of my clients a few months back had this to happen to him. i modified his diet twice, yet he continure to loose some weight, i discovered his blood sugar was 305,normal range is 80-120
wow..i know this is a old thread but i just seen it..i need to get checked but im in my early 20's..my dad and my oldest br both have diabetes ..genetic?prolly..but also environment indused