It does sound like a pinched nerve probably coming off of your neck or back. I get this a lot, just from sleeping wrong, something I did during the day, etc. Those pain patches are a blessing, aren't they? There is also something my doctor recommended, Pain Bust RII, extra strength that really does the job. It's just a rub-on thing. Of course, if it persists more than a week, have a doc look at it. Good luck.