awww its really hard knowing too!! Matilda had teeth come up & down for a month & then disappeared for a few months and only got her first tooth at 13 months! But she definately suffered from "teething" & we could feel the teeth at the gums. I didn't find much worked but the homeopathic tablets & drops tended to ease things a bit better than anything else.

Like Shannon said, it can't hurt to rule something else out for this behaviour.