I haven't had that problem myself but you are right to be concerned - there is a problem with your jaw (hard to say if it's TMJ) and it will get worse if not addressed.
Make sure you research the absolute best modern neuromuscular dentist in your state and get the best medical opinion. The field of TMJ has no best practices and just seeing the local specialist may cause you to end up with the wrong treatment and a worsened condition (just spend some time on these sites and you'll see).
Hang in there! It can be really hard to do research to find an excellent specialist when you are in so much discomfort, but it is so worth the effort. Ask friends/family for help in doing so if you need it.
Wishing you the best in your recovery