We have a gorgeous 4 1/2 month old who until this week was the best behaved baby ever - great naps, sleeping through the night etc. This week she's become more unsettled, sleeps much less well, is chewing her fist constantly and, weirdly, has gone from eagerly downing big bottles to really crying when she starts sucking on the bottle. We've found that we have to get her almost asleep, using a dummy, and then putting the bottle in. She'll drink a bit, then cry/get uncomfortable, and we have to use the dummy again... It can take ages. Other than that she's incredibly happy and cheery. Could it be teething? She also swipes at her ear a bit, which I thought was a sign of tiredness initially, but now I'm wondering if it's teething. thanks,