I think cutting and starving yourself are different but the same in so many ways. You might think you are doing them for different reasons, but I think it all stems from the same problem. I would definitely seek help for this, though, you could be putting your life at risk. Know you are not alone, I have times where I don't care what I eat and I eat as much and whatever I want. Then I starve myself because I feel like I don't deserve food, and I like the lightheaded feeling. While I might not be doing it for weight issues, they are on the back of my mind too.