Can anxiety mimic symptoms of ear infections? such as ear ache pain near the jaw?

Possibly: Anxiety can mimic most anything, but more commonly leads a person to magnify existing problems out of proportion to their true level. It is such a common problem in our society, and help is available. Though stigmatized, it warrants your access to a mental health professional. So many people suffer from anxiety, and many can be profoundly helped. Good luck!