You need to have an honest talk with your mother about how she makes you feel. Giving her the benefit of the doubt, she might be unaware of how her behavior impacts you.
If she continues to comment about your weight, even after you have a talk with her, then limit the time you spend with her. Should it come to that, make her aware of why you are choosing to limit your time with her. You might try this: “Mom, I love you but psychologically, it’s unhealthy for me to be in your presence when you constantly nag me about my weight. I am working hard to manage my weight but you are not helping. If you will not stop, then we will be spending less time together.”
If this problem remains unresolved, consider individual therapy. An individual therapist can gather more information about the relationship dynamic between you and your mother and advise you accordingly. Colleges typically offer free counseling services for their students. You might benefit from short-term therapy to address the concerns with your mother and your stress eating. Please take care.
Dr. Kristina Randle
Mental Health & Criminal Justice Blog