Weird soreness

Yesterday, I woke up feeling like my cat scratched me on the neck.  Nothing was there, though.  As the day progressed, my neck got more and more sore.  I took some ibuprofen and went to sleep, but when I woke up today it was the same, even worse.  Now other parts of my body are following suite.  I will feel random sore spots on my skin.  It's really weird.  I'm not sure what to do, other than take pain pills.