It's the same for me too, I have anorexia and bipolar. And they both cycle yes! I have been struggling with anorexia since I was five, so I can very much relate to your post. I'll do ok for a while, but the anorexia always resurfaces.

Seeing someone is a good idea. I have been going to an Ed clinic for a while now. It I helping a bit. I also took up yoga, that has helped more than anything. I didn't expect it but the whole mind body connection has really made improvements in my thoughts. I've read a lot of articles that support the help yoga can do in regards to eating disorders. Something to look into anyways.