I'm sort of in the same boat. I'm in the process of gradually increasing my calories to stop the weight loss. Like you, I get full pretty quickly so I am resorting to grazing all day to get the calories in. I've only minimally upped my carbs and fat and am trying to make up the calories by volume, but I'm not sure this is going to work for very long. I know I'm going to have to up those macros, but I'm not mentally ready for that yet.
As for exercise, I didn't/don't want to reduce the amount I do...for me, I think its important to stay active (and I also kinda like it now, lol).
I started a "Maintenance Thread", to get the conversation going on this topic...you can check it out (it just started )