Ritzy, I don't know if it is TOM or something else, there's really no way to know for sure.
I do know for me, that I definitely have times where I am more "munched" then others and it makes staying on plan SOOO much more difficult. Those cravings really ARE miserable when they hit, evil in fact. But just because we're having a craving, doesn't mean we HAVE to give into them. I know, it's easier said then done, but really that's the bottom line. Thankfully those muchie periods always pass, and they can last for days at a time, but when they do pass, oh what a relief it is. They do pass quicker the less I give into those stupid cravings, without a doubt.
When the seemingly uncontrollable muchies hit, I do my best to do something to take my mind off of it. For me, that usually means straightening up the house - whether it be clearing up a messy drawer, ironing, laundry, sweeping, cleaning the floors, the bathroom - the whatever - just SOMETHING. Then there's doing some exercise, coming on the computer, doing some paperwork, - anything to just get me out of the moment. In fact, I just made a list of all the little extra things I've been wanting to do around the house and never seem to find time for - this list is for the sole purpose of distracting me when I feel like eating just for the sake of eating, not real hunger, though of course it really does contain things that need to be done.
I also find that drinking helps. Either lots of water, some hot tea or flavored seltzer.
Ritzy, you've done a great job already and will continue to do so. Take confidence that this is just a minor blip in the road, surely to pass. Hang in there and by all means hang TOUGH.