Does this sound like an eating problem?

I will spend a few days stuffing my face with everything until I get a sick feeling and often eat past that feeling. I start to feel really guilty and bad about myself cause I ate a ton of food for a few days straight so I don’t eat/eat very little for the next few days. It is kind of a cycle. I have been skinny all my life but for about 2 years I gained quite a lot of weight, then I got pregnant so that added to it. 9 months postpartum and I have lost ALL OF IT. I basically look like I did 2 years ago and I’m really happy about it. The problem is, is now I feel like I might lose this body again and gain it all back somehow and it scares me. I feel better when I don’t eat. I try to eat healthy without stressing myself out about it, but I can’t seem to stop the every few days of non-stop binging.