I get bad stomach pain if I go too long without eating too. It sucks. Not enough sleep could be a factor aswell...I'm trying to change that but I may have to ask my dr for another prescription for Zopiclone. I havn't needed it in months but I find when I go through a really stressful time I have issues sleeping because my mind won't stop racing. I am trying to make my bedtome at 9pm, which worked for the first night but the second night I got too worked up to sleep and ended up going to sleep after midnight, and the third night I just couldn't sleep at all until about 11:30, then my daughter woke me up at 3am because she is starting to get a cold. Didn't get back to sleep until 5:30am because of my mind racing again, then was up at 6:30 because my daughter was awake. So yea, it's hard to get enough sleep.