Basically, BC stands for before Christ and AD stands for Anno Domini, Latin for in the year of our Lord.. The transition point between BC and AD marks the approximate time when God incarnate came down to earth to live with His creation.
The only area that is involved is the spot direcly behind my right ear lobe where it sinks in, not futher behind where the gland or lymph node is. I have gotten swollen lymph nodes before, this is very different. My inner ear, and throat and all other surrounding areas aren't in pain at all.
Painful lumps behind ear causes include: 1  Abscess â These are lumps that develop when tissue or cells become infected. 2  Dermatitis â This takes place when waxy dead skin cells or dry skin builds up and is joined by inflammation and redness. 3  Mastoiditis â The mastoid bone is found behind the ear and can get infected.