soo... my iPhone just started randomly beeping and woke me up. Not very loudly, and not with any sound that you can access on the phone. It was beeping twice a second. I turned the phone of and back on and it went away.
Nope. Definitely not an alarm. I mean I do have an alarm set, but that wasn't it. I actually think it might have been the e-mail notification repeating over and over again in rapid succession, so maybe it crashed or something.
Could be your battery. On my phone it beeps when it is loosing a charge and when I turn it back on it has at least half a charge left until I start making calls. lol