my DD has been waking more and more overnight for the past few weeks and got her first tooth last saturday. she used to go down at 7ish and wake once or twice before getting up at about 6am. now she wakes every hour and a half/2 hours. she's easy to re-settle and i've only been feeding her every other time, so she's going 3 or 4 hours between feeds, but still waking up increasingly frequently. is this just teething? and if so, any idea how long it'll last - i'm starting to lose the plot!! thanks