yesterday, i woke up with an extremely stiff and aching neck and it's still here now. i thought i was coming down with something but i feel ok but my neck is very tender. i was panicking a bit but then remember on the early hours of sunday morning me and my friends were rocking out to some rock and roll songs, air guitar, general messing about thinking we were cool and i think it's from that :/ have i effectively given myself whiplash?