Apparently I’ve pinched a nerve in my back. This results in random searing back pain accompanied shortly thereafter by nausea and headaches. It’s not comfortable but one thing that Rian read about today did help amazingly. Take a block of ice, put it in your mouth and push it up against the back of the top of your mouth… Apparently this cools your hypothalamus which, for some types of headaches, stops a feedback cycle and can occasionally fix a headache in its tracks. It worked for me!