Possibly a plugged hair follicle or a cyst. Only your doctor can tell you for certain as it would have to be looked at to be diagnosed.
I don't know about "behind the ear", but the body is full of lymph nodes. I had a lymph node on the back of my neck right at my hairline that became "calcified" as the doctor called it. It was about the size of a nickel and was not sore at all. I went ahead and had it removed though so that it wouldn't turn into anything serious later on-like cancer. Also, my surgeon said that if it was him, he would have it removed.
A Pea sized bump on the back of an infant is called a hospital visit. Good luck.
Geez go to a doctor before it spreads to others.
Herpes Zougust
You are allergic to nickel. You can only wear 14 or 18 carat gold. The lump can only be removed by surgery.
A pea sized bump by the ear is likely to be your lymph node. You have hundreds of them all over your body. They are flat, round and about the size of a pea.
Yes, a chalazion is a small bump that can form in or under the eyelid. This bump forms because of a blocked oil gland.
under the bed
Hairline fractures can occur in elderly individuals due to weakened bones from conditions like osteoporosis. Even minor incidents, like a fall or bump, can lead to a hairline fracture. In this case, the heavy casting is likely to immobilize the foot and allow the fracture to heal properly.
Cyst
IT MEANS PUPERTY
everyone has this.