Momcat

My experience is a little different from what I've read here...I am 6 years out from VSG. Went from 263 to 150 in about a year. Kept the weight off for about three years, and then started gaining. Over the last three years I've gained about 25 pounds. Problem is, I have no idea why I'm gaining, which is really scary for me. I am 63 years old, which may have something to do with the gain??? I have never strayed from the program. Have eaten very low carb, absolutely no sugar, for the past six years. I eat only protein, veggies, and a little fruit. I do eat a product called Thinslim Pasta, as well as their bagels, which are low carb and low calorie (55 calories and 8 carbs for the pasta and 90 calories, 0 carbs for the bagels). I also occasionally eat Built Bars and Enlightened ice cream bars (also low cal and low carb). I track my calories and stay at around 1400. I exercise regularly (I walk 3 to 4 miles about three to four days a week at a pace of 3 miles per hour). And yet, I am gaining. I have tried and tried again to take off the 25 pounds I have gained without success. In fact, I am continuing to gain a little at a time. Have had my thyroid checked, which is normal. Any advice???