<human>: Can you provide a brief overview of the text?

Hey guys. So, I carry my cellphone (currently an iphone4s) in my left front pocket. For some reason within the last week I have started feeling an incredibly realistic and persistent vibrating against my RIGHT leg, near the front right pocket area. 
I never carry my cell phone in my right front pocket, so I have no idea why this is happening. In the past I've occasionally felt a much more subtle "phantom cell vibrating" in my left pocket, but that makes a bit of sense since that's where I always carry my cell. This new phantom cell vibrating is a brand new sensation, as it is and incredibly realistic and strong sensation, and it even starts and stops the same way a cell phone does when it's on silent and vibrating in your pocket. 
I haven't changed anything recently that would cause this to start. I've had my current iphone since it came out last year. No idea why this is happening all of the sudden.
<bot>: Just recently, I began feeling a strong phantom cell phone constantly vibrating in the opposite pocket that I always carry my cell phone in. Why?