My lo is 9 mon old developed very weird habit. from last 10 days approx she only want to be held up.not for a sec she sits.dat too after i take her she tap my back and cry her lungs out to move.she is only wanting to be held up and roam.Tired from 10 days.dono how to handle. is this a phase or something to worry bout.She was never a child like this from beginning. now i dono why she is doing like this.plz suggest