My 17 week old has been very hard to feed the last 5 days... She starts screaming and refusing the bottle part way through most feeds . She has no visible gum / teeth issues. If I put my finger in she will chew down on it - but I am not sure if she would do this anyway. She dribbles only a little . She is now pooing about 5 times a day rather than the usual 2 or 3 and they are loose and she has nappy rash . She has pink cheeks sometimes but not all the time. Once we stop feeding she settles quite quickly which is why I don't think it is the reflux she usually has. Do you think this is teething or should I be concerned ??