Hi, I'd like to help you with your question.
Going to your doctor to discuss your issues is never a bad idea particularly with any health issue such as mild kidney disease. However, given what you have told me, another option might be to explore mental health therapy. A good therapist can do an evaluation to determine the source of your overeating issues and also the level of your depression. Once your evaluation is completed, they can determine the best treatment for you, including whether or not medications are indicated along with talk therapy. Therapy with or without medication can do wonders in helping you understand the source of your issues and provide answers to improve your life.
I hope this has helped you,
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