Excactly the same happened to my daughter at 14 months. It always happened with a bad teething bout and she has had many of those recently as her back teeth are coming through. She won't allow me to feed her but she is happy to feed herself, I now sit her in her high chair up to the table with us whilst we are having meals and chop her food for her and she used a fork brilliantly now although she still likes to use her hands. This is the only way that she will eat. She has virtually everything that we eat now. She had Spaghetti Bolognese the other day too!!! No problem with a plastic bid from head to toe and a large mat under her chair. I remember that I had to do this with my son too and he is now are very good eater, no problems, he eats everything and plenty of it, not a fussy eater like many of his friends!