Hi g00bah, in this link you may find some useful info on how to reset an iPhone. If this is not helpful you may need to connect the iPhone to a computer that has iTunes, and where that iPhone has been previously been backed up, to restore the iPhone
It's troubling to hear that your phone's not working as it should but we're here to help. What were you using on your phone when this started? What changes(new apps, software, etc.) were made to the phone prior to this happening? Has your phone been damaged in any way or exposed to moisture?
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