Replying to Iphone just fucked itself...

ok, well my iphone IS fucked...
all day ive been sending texts with no replies. i just thought i was mr. loner over here.
but 30 seconds ago my gf texted me and i got like 14 text messages at the same time, i thought someone was calling me but i just got all the replies that were sent during the day. and apparently my phone sent my text like 4 times to who ever i was texting.

has anyone had this problem? where the iphone doesnt receive texts until you send one or you just suddenly have all of them pour in.

its fucked. i think i should go to the geek desk or whatever it is, but ill as NS first... like any NSer would.

has anyone seen/had this problem? how to fix? (and i have restored my phone)