Not Sure I'll Ever Understand My Band

For weeks now I've been able to eat anything, very rarely getting stuck and if I did get stuck it was very mild and passed quickly. I could eat cake, bagels, pasta, rice, etc. Today I'm trying with every ounce of my being not to eat my way through the day. I had a slimfast this AM and just sat down with a plate of 6oz of tuna w/a little mayo and chopped onion and 1/3 through I got a little stuck. I stopped and it's passed but wow. Do you think your band tightens up if you follow the rules more? Does that make any sense? Whatever it is I am thankful for it. Now that the stuck feeling has passed I feel mildy full as well. I think I'll save the rest for later. I really want to eat more so I can taste more but that's not the right reason to eat and it's the behavior I most need to reel in. Baby steps....put the tuna away.