It could be. I stay away from the fake sugar because I realized it was giving me nasty headaches. Fake sweeteners can take 72 hours to get flushed out of the body, so if your taking it in everyday (or more than once a day) the chemicals can build up.
Hardest part of working out, is that first step out the door.
Long term goal- revised after baby
240 goal - 02/17/10
Had a baby- 06-01-12 gained 46 pounds.
234 lost baby weight 3-21-13
220 goal = half way!
218 goal = Lowest ever weight!