pain in the right ear or the lower jaw

I suffer from (CREST )

I have pain inthe lower part of my ear or jaw and the jaw clicks when I open my mouth. Sometimes the pain is like pins jutting in my ear.

I also have a septic spot on my elbow for which I am taking anti biotics.

I am very very tired. I already take Thyroxine for under active gland 75mg

I am a little worried, awaiting to see specialist re jaw, had the elbow lanced yesterday.The substance drained from it sent for te.sts