I lost 30 lbs the first three weeks after surgery, coming down from near 300 lbs. Now I have gained a pound in my 4th week. I heard this may be normal, but I feel maybe I need to buckle down even tighter on my eating, not sure. If this is true, how long did it last for you? When did you start to lose weight again?

I'll be honest: I didn't do anything differently. I've stalled for a month or so by now, but the stalls eventually break. Didn't gain the weight by putting on a pound a day or anything at all predictably even; don't expect to lose it that way, either.