I have been having pounding headaches that originates from the left part of my neck, for days. It goes away when I take pills, but comes back the next day. This has rarely happened, so I'm kind of worried. It is exam period, so could it be caused by the constant neck strain from revision and doing exam papers? Also, I am having a cold right now, with sore throat and nothing else. I have had migraines before, but recently headaches (not migraines) that go on for days have been happening a bit more. What is happening to me?