hair and feels like one too, but it's a perfect circle.
Even if you pinch it, the circle stays perfectly round.
Inside the circle it's normal skin, but sometimes there is some white discharge
history, this may be blocked hair follicles, sebaceous glands and sweat glands. Other differentials may be folliculitis. However folliculitis appears to be reddish and they may involve the hair follicles.
At this point, this does not seem serious. Just refrain from touching or manipulating the bumps. Have this assessed to allay your worries and concerns.