I wonder why non-obese people overeat, and I would imagine there is as strong a possibility that they also don't get the same satisfaction from overeating.

I tried an emotional connection theory on myself once. I was eating M&M's daily and I read that there might be an emotional connection to that behavior. So I spent some time noticing how I felt about eating those M&M's and any connections that might come up. I realized that eating them was indeed a reward/comfort and that there was a connection to my beloved grandmother, the only person I could relate to because she was also hearing impaired. When I stayed with her, I could have M&M's every day. So I began thinking of my grandmother, remembering her and remembering what it was like to be with her, the only place I felt cared about and cared for; soon I could just enjoy that time thinking about her and the craving for the M&M's went away. The memories I enjoy instead of the M&M's are much sweeter.