when charging verizon iphone all notification vibrate

[fingas01]

i have a problem and i want to see if others are having it. When i charge my phone either through the computer or the power outlet all the notification vibrate they do not make sound. My phone will ring when charging but that is the only could it make. Everything else is in vibrate mode and i dont know why. I talked to apple and they want to do a hard reset but i dont want to yet because i have problems with my email server and it took awhile to get that done. Please just let me know if this happens to anyone else