I know how lost you feel! I've suffered from an ED for years (I'm in my thirties now) and although I was obviously underweight during certain periods, ATM I'm a "normal" weight. Although in comparison to some at my height (5'10'') I'm on the thinner side. But I'm still not thin if you know what I mean. It's tough because we suffer, but it's not obvious what we suffer from. I feel as though I'm not truly anorexic because you can't see bones.

I think you should absorb the costs and speak to a nutritionist. An actual specialist. I'm worried if you try to gain control over food yourself you'll repeat the cycle.
Good luck to you!