I'm in a similar situation, every time I feel stress or anxiety I turn to food. I tell myself that over-eating is bad, but I'm also too stressed to stop myself. Food makes me happy, and when things are hard, I feel it's all I have to make myself feel better.
But then I get upset afterwards because I've eaten too much and switch to starving myself. Again, I know it's not good for me and won't make it better, but I find I can't help it. I feel guilt, and then become repulsed by food and can't handle even the sight of it.
I've been swapping between over-eating and under-eating for years now. But like SM mentioned, the best way to really make it stop is to fix the underlying issue. In my case, depression and anxiety. So I see a counselor now and talk to my doctor about treatment and medication. As I have found out, the less stress I feel, the less likely I am to eat bad.
I've also spoke to a dietitian about healthier alternatives to my stress foods, like eating salted rice-crackers or rice-cakes instead of a bag of chips. That way I can still have my stress foods but with less guilt that I'm being too unhealthy (though I still have my bad days. It happens.)
I wish you luck though, it is hard dealing with an eating disorder in today's society. I find a lot of people can be judgemental about it which can sometimes make it worse. But also know it's common, so you're not alone. A lot of people struggle with eating disorders, and with time, many people overcome them too. Just focus on looking after yourself, not just physically, but mentally too. And know that with or without this issue, you're still an amazing person who deserves to be cared about by both others, and more importantly, yourself.
