I am getting pain in my left side more than the right side of my jaw every time i eat or yawn been going on for 4/5days so far?

TMJ: Mostly you are having problems with your TMJ. It is more inflamed on the left side than the right. See a doctor. You can start by taking NSAIDS like ibuprofen.

TMJ dysfunction: Hi Hannah, jaw pain is quite a common complaint. Most instances are described as TMJ dysfunction and settle with rest, and anti-inflammatory medication such as Ibuprofen. See patient.co.uk TMJ dysfunction for a good summary. In your age group more serious causes are less likely - it might be worth getting your teeth checked however. See your GP if problem persists or worsens despite these measures