Scared of food

I am a 43 year old woman who has gained 100 pounds in the last seven years. I fell down the stairs and ended up in a cast, then had several more falls and ended up in a wheelchair and several more casts, and eventually ankle surgery. All of this time being basically unable to move I began to gain weight. I found that I LOVE food and ate and ate until I was almost 260 pounds at 5'8".

I hate it. I have NO clothes that fit, I don't want to go in public, I am uncomfortable and I don't feel good about myself at all.

A couple of weeks ago I decided that it was my time. I began by riding my recumbent bike 30 minutes a day every other day, and it is HARD! By the time I am done I am sweaty and I need a shower. I PUSH hard through to get it done no matter what. Now I am doing 30 minutes every single day.

The problem is my food. I completely quit eating normal food. I drink one Shakeology for breakfast EVERY DAY, then I eat a raw kale-spinach-cabbage salad for lunch (no dressing), then maybe another Shakeology for dinner or SOMETIMES a Nutrisystem dinner entrée. I drink a LOT of unsweet green tea and water. It has got to the point where I am eating about 5-600 calories a day. I do get hungry but it's like I am terrified of food now. I am making progress but I don't want to weigh in because I don't want to be disappointed. I have obviously lost weight but I don't know how to proceed.

The words of my doctor keep playing in my head... Calories in, calories out. I am terrified of calories now.

I feel like if I start eating again I will NEVER get to my goal weight, at the same time I am afraid that I am going to crash and end up collapsing or gorging. I want this soooo bad that I am completely dedicated but afraid of failure too.

Help!!