Not to make you lose hope in a solution, but first person that should come to mind is a Doctor or anybody in this line of work. once you do your consultation they will advise on how best you can make lifestyle adjustments for you to live a better healthier life.
The stress will need to be tackled and to help you get off the food that's hiding the real problems you have. Talk to someone, your sister, mother, brother anybody that won't make you feel uncomfortable about this topic
. You are already on the right path by opening up, this fight has victory written all over it, don't give up.