I have seizures and migraines and 3 days ago I received an occipital nerve blocker in both the left and right sides of my neck.Yesterday I used tin foil and highlighted my hair and last night I noticed a pain on the left side of my head almost in line where my temple is but further in the head not on face and it feels bruised with a small lump.I didn't injury myself or hit my head just wondering what it could be,it does have a small red spot like it I had bumped it but I didn't please help