Is my new pet hamster sick?

I doubt its her being sick. She could be cold so make sure she isnt near any widows or winds. Maybe you think shes shibering but really cleaning herself??? But if its neither then she will probably stop by next week. Oh and deffinetly get rid of your bedding. No wood at all some people get aspen but i would still try to stay away from it, you could try carefresh or eco bedding, both are great, hopeni helped