by nickieluv » January 23rd, 2009, 8:22 pm
Could be. Your body has to adjust to the reduced calories. Give it another week or two and see if it doesn't go back to normal. If it doesn't, you could always try the Momentum products. They keep me up till all hours if I have them too late in the day, so having one around dinner time might be just the pick-me-up you need to stay up a bit later.
Hope you're enjoying the plan and seeing great results!