Recently, im not sure what happened to my Blackberry Tour, my phone keeps sending and recieving something and its draining my battery. Fully charged it lasts 3 hours before it was at least 14 hours. Please someone tell me whats happening to my phone. Top right corner of my phone it keeps showing the arrows and im sure its sending and receiving "data"? Please help me out.

Edit: I forgot to say that I've tried turning off my radio, it would stop for a couple of mins but then continue. Ive taken out my battery multiple times and still nothing.