Hi Karen,
My lo is 17 weeks old tomorrow and seems to be cutting his first two teeth - his cheeks are very red, and he has constantly got things in his mouth rubbing them on his gums.
Over the past two days, I too have noticed that he has been refusing his bottles - only drinking 6 of his usual 9 oz. I have tried to give him more and it only frustrates him.
Yesterday once he has stopped his bottle and would not take any more, I put some Bonjela on his gums, and straight after that offered him his bottle again, and he took another 2 oz of it. It is worth a try - hopefully this will work for you.
Let me know how you get on.
Paula - Mum to Thomas