Alexzander was exactly the same Sush and has only now around a year later started eating properly again & trying different things. It got to the point where he was eating almost exclusively fruit and bread as he wouldn't allow anything else to touch his lips at all. He lost weight, but nothing too serious, the thing I kept an eye on was his energy levels and they never seemed to waiver so he was getting energy from somewhere!

Hang in there, it might be short lived