I had jaw/ear pain on my right last night and today it's on my left. i had bloods drawn from my right arm and hours later my whole arm was in mild pain. then the jaws followed. are these related? what causes this jaw pain?

See below: Without my information it is hard to know - I suspect that the blood draw is not related to your jaw pain- Jaw pain is often caused when people clench their facial muscles or grind their teeth - stress is often the reason - (and these are stressful times)- try warm compresses to the affect jaw - avoid caffiene , and stimulants, - if it persists then see you dentist - try not to worry