Lumps on Head

Hi,

I was wondering if anyone has ever had Lumps appear on their head when they have a flare up? My RA was bad this weekend and I also had a Migraine and I noticed a lump on my head. I did not hit my head. It was tender and sore to the touch....and then the next day it went away.  I also had a lot of neck pain.  I was wondering if it was my RA or something w/ my Migraine meds or RA meds... I have also be having a lot more Migraines then normal (have had them most of my life) they seem to flare when my RA flares...like everythingis all tied in to each other.