Ok, slow down a second.
No one is diagnosing anyone. we don't have enough information to do so, nor do most of us have any training.
But, both you, Gadsie, and you, Ribbons, have sent out enough *red flags* for people here to be concerned that you have an unhealthy relationship with food that could be, or could lead to, an eating disorder.
And thus, we have recommended that you get help. Ultimately, we cannot help you, because we are not trained to help you, only a person who is trained to help you can help you.
The therapy that you will be getting will not involve nutritional counseling from the therapist. That is not their area of expertise. When a person goes for in-patient care for eating disorders, then there are doctors and nutritionists who manage the health side of things, and the therapists manage the anxiety and mental health issues side of things.
For the two of you, the most you will be receiving at this point from a therapist is the mental-health side of things. You will be uncovering why you are anxious and how it works and manifests in your life, and how to overcome that anxiety. This may involve all manner of therapeutic methodology -- it depends entirely on the therapist and what you require.
And, it does work. My husband -- who struggled with anxiety and disordered eating (but was never diagnosed with an eating disorder, though ortherxia may have been very close to how he behaved) -- received about 2-3 years of solid, deep counseling that did him a world of good. I had neither anxiety nor depression, but I was struggling a great deal, and by getting therapy, I was able to work through codependency and other related behavioral issues that were causing me all manner of emotional hardship and difficulty. I was in therapy for about a year, year and a half.
Over the years, my husband and I have returned to therapy for certain amounts of time (several months) both individually and together -- to help work through specific issues where we felt we lacked the tools and felt that therapy could help us.
I cannot recommend therapy enough, even to seemingly normal, healthy people. Even now, I feel that if I could afford to go to therapy, I would -- just because I find it to be *that* beneficial. As it is, I do get "supervision" which is sort of therapeutic-light, but based on my work, and not much outside of that (it's designed to facilitate appropriate boundaries between my work and my own therapeutic self-work, if you know what I mean). I go to a very talented supervisor, and I value him -- and the process -- very highly.
While I understand that the vulnerability of going to counseling is scary, it is wholly confidential -- even for teens. The only time the confidentiality *may be* broken is *if* the therapist feels that you will harm yourself or someone else. In most cases, this would be managed by the appropriate emergency teams (such as calling an ambulance to your house, or calling the police to get protection for the person whom the person in therapy may harm). Since it is unlikely that you would come to these extremes, you have nothing to fear about your confidentiality.
Please, stay dedicated to getting help. It is very helpful, and so very worth it.