ear pain what the heck is this????

you might have skin cysts in your ear... any raised skin patch can potentially be sensitive and it sounds as though you have developed some in your ear...
Either that or maybe are you putting the earphone in at a weird angle? I can't wear earphones because they hurt my ears inside to wear them...
but if it is your skin, with bumps for sure then probably check with your doctor to be safe :)

Bruxism is when you clench or grind your teeth.

Clenching means you tightly hold your top and bottom teeth together, especially the back teeth. Clenching puts pressure on the muscles, tissues, and other structures around your jaw. This can lead to jaw pain and soreness, headaches, earaches, damaged teeth, and other problems. The symptoms can cause temporomandibular joint problems (TMJ).

Grinding is when you slide your teeth back and forth over each other. This can wear down your teeth. Grinding can be noisy enough at night to bother sleeping partners. Like clenching, grinding can lead to jaw pain and other problems.

Treatment:

The goals of treatment are to reduce pain, prevent permanent damage to the teeth, and reduce clenching behaviors as much as possible.

To help relieve pain, there are may self-care steps you can take at home. For example:

Relax your facial and jaw muscles throughout the day. The goal is to make facial relaxation a habit.
Massage the muscles of the neck, shoulders, and face. Search carefully for small, painful nodules called trigger points that can refer pain throughout the head and face.
Learn physical therapy stretching exercises to help the restore a normal balance to the action of the muscles and joint on each side of the head.
Apply ice or wet heat to sore jaw muscles. Either can have a beneficial effect.
Avoid eating hard foods like nuts, candies, steak.
Drink plenty of water every day.
Try to reduce your daily stress and learn relaxation techniques.
Get plenty of sleep.

Well with headphones, especially large more expensive ones, your ears tend to sweat. I know mine do. Anywhere there is moisture, infection can grow so you might have an infection. The ear buds that I have hurt me sometimes, but not like the way you described. You most likely have an infection.

first things first, you need to go to the doctor. there is probably an infection in your ear your doctor would most likely prescribe antibiotics. secondly its better to use headphones than earphones. You could start using earphones again after the treatment but make sure you clean the earphones before use.