trob1234, do you think your metabolism might be a bit fried? With your history of eating quite low calories, I think it might be a possibility. If you are finding that you are eating less than you calculate you need to to maintain, and are not losing, or even gaining, your metabolism might be a bit wrecked from the dieting. I'm trying out LeanGains at the moment, and I have been advised to increase my calories slowly, say 100 extra cals each day, in weekly increments of +100 cals. So I should go from 1400/day (on workout days) to 1500/WO days for a week, then 1600 for a week until I reach a higher equilibrium.
Also, any excess carbs will store water. You can easily gain a few pounds by eating some extra carbs here and there. I find this sort of water retention goes away in a couple of days. this can also happen with nitrates in bacon, ham etc.