My 5 mo has started pulling at one of her ears and rubbing the side of her head quite a lot. I know this can be a sign of teething but after googling (which I know is a mistake!) I think she also has other symptoms of an ear infection - trouble sleeping (when lying flat) when previously an excellent sleeper, irritability when feeding (also previously a good feeder). I know these things could all be coincidence but should I take her to get checked out or am I just being over-anxious because she is my first?!!