I recently started taking Abilify and now have a sore skull.?

I started Abilify 19 days ago.The 1st 2 weeks I was taking 2mg,for the last 5 days I've been taking 5mg.I started noticing that when would bend down to pick something up my head felt funny.It feels like either the inside of my skull or the outside of my brain is sore.If I shake my head it really hurts but it doesn't hurt when I sit still.My BP is normal and I have no other symptoms.Anyone have any ideal what this is?Oh yeah,I also quit caffine cold turkey about 11 days ago.I really don't want to stop the Abilify because it's working so well.Thanks...