名媛直播

Hi! I purchased a Fukien Tea 名媛直播 Tree on ebay 2 weeks ago (bought a heat pack that was placed inside the box) and it arrived fine but now it's dropping it's leaves like crazy. I had another for 5 years so I'm not new at caring for them. I have it on a tray with pebbles in a window that gets sun all morning but it has been very cloudy here in Illinois the past month. I keep it watered so it doesn't dry out but it isn't soaked either. It was delivered here from California and just found out from the owner of the nursery it had been outside for 2 years, If I had thought to ask that I may not have bought it.as I'm sure the poor tree has gone thru a traumatic trip .My question ..is it normal for it to lose leaves at first and will my tree bounce back? thanks!