Hi dr. Grief, Since yesterday, I ve been feeling sudden sharp pains inside my head. It happened suddenlyyesterday when I tried to lie down on my right side. The pain was so severe that I couldn t stand it so when I got up, it went away completely and it happened again as I tried to lie down in the same position again. Today, however, it s less when I lie down in the same position but when I laugh, it comes back again. A few days ago, I had a pinched nerve in my shoulder so not sure if it has anything to do with that or not. Thank you, Dena