Suggestions on how to……stop losing weight?

Never thought *this* would be an issue….but here we are. Bypass 12/12/24, so just about 15 months out. Goal weight was originally 140 with the *ultimate* dream being 130 lbs. This morning I am 105 and technically underweight. I feel like I eat LOTS. I did speak to my surgeon who suggested I up my healthy carbs (is oatmeal, etc) which I have, but still slowly losing - current rate is about 2 pounds a month. I looked at calorie calculators which put my maintenance at 1300/day and have been eating 100-200 above that as much as I can, but I think the malabsorption is still high enough that I just don’t get quite enough out of it to maintain. And there’s only so much I can eat at a time! I’ve started grazing through the day and even occasionally splurging on junk calories, not ideal but I really don’t know what else to do.

Has anyone else gone through this and have any suggestions to try? Am I going to start drinking ensure all day to get extra calories in?? Ugh!!