I'm sorry you had this experience, izzyv11. A car is such an enclosed space to begin with... & then to have someone yelling at you in it must make the experience seem much worse. Medications do lose their effectiveness sometimes. Is it possible yours has, & you need a change?

I have tinnitus (ringing in the ears.) And I recall when it first started & how terrified & out of control I felt. It was an awful experience. I imagine what you are experiencing, in terms of anxiety, is something similar. I hope you can find the strength to persevere. I send you warm hugs to buoy you in your struggle.