I too am 7 years out and though I haven't gained back a lot, I have gained and have been unable to get below 185. Through this website I found a link
Surgical Weight Loss 5 Day Pouch Test I think you should try it. Yes, you should probably cut back on the M&Ms, but it sounds like you're not eating enough period. Do yourself a favor and try this pouch test. I am almost through day 2 and feel fantastic!!! I've even started losing weight again after many, many years!!! Good luck... you can do it.