I truly doubt it's a slip. It sounds more like normal life with the fickle band. Tightness can often correlate to water retention and numerous other things. The reason most of us are tight in the morning is because when we are laying prone, (sleeping), fluids settle in our tissue and organs. It takes some time after we get up and move around before the fluids work their way through our systems and eventually out, thus we get looser as the day goes on. Stress, altitude changes, and lack of hydration can also affect the band. I've had issues with certain foods irritating my band like acidic foods, choclate, coffee, spicy foods and even popcorn. If the esophagus, stoma or pouch become irritated from a food source it will cause swelling. Sometimes it will go away over a few days time but in a couple of instances I've had to have unfills and take Omeprozole to calm the irritation.
If this tightness becomes constant or gets worse definately call or go see your Dr.
Lap Band surgery Nov. 2008, SW 335. Lost 116 lbs. LB removal May 2013 gained 53 lbs. Revisied to RNY October 14, 2013, new SW 275.