We have discussed what tension headache are, and the various triggers that can cause them to rear their head (or your head rather). Well one very common trigger for tension headaches can come from your jaw.
There are two primary reasons for jaw pain
The first is from direct trauma- such as a motor vehicle collision, fall or direct blow to the jaw or face.
The second, common cause comes from stress and/or anxiety. Often people may be clenching or grinding their teeth quite a bit. Many people think they don't clench, but they actually do!
This can cause a lot of muscular tension in the jaw
There's four main muscles of your TMJ. The masseter, temporalis, and both the medial and lateral pterygoids. The temporals muscle travels from your TMJ - right infront of your ear - and goes up and along your temples (this is why it is called temporals). So when it's really tense and tight, it can also cause headache within that region.
This may be why sometimes rubbing that area can be helpful.
So if you're getting jaw problems locking, popping clicking or pain…it may be a trigger for your tension headaches as well.