DS is 8 months old and has always had a very demanding/ difficult temprement! He whinges and moans on and off all day and always has done. My main problem is that the last 3 days he has been taking less and leass solids and just turning away and crying whenever I bring his bottle to his mouth. he arches his back and really struggles to get away. I have to rock him and almost force the bottle in his mouth, once it's in, he relaxes and will feed OK but only about 4 oz before he's had enough and spits it out. It's vey unusual for him as he normally drains 8 oz bottles and is OK with solids. He only has one tooth but there does seem to be one coming next to that one, could it be teething realated or is it something more serious?