Hi all, I need urgent inputs. DD is 6 mnth 3 wk old. Since the last 3 hrs she is very disturbed. Dunno wat it is but she is not sleeping on the bed.the moment I even lift her she starts howling and real hard. She is comfortable in only my lap. But it's been 3 hrs now and still she cries if I put her down. She is very sleepy and sleeping great . But my legs are aching like mad. I'm worried ... Is she catching something??? Teething? Back pain? Fever? Cold? Or just plain tantrums?