Dermatology Questions? Ask an Online Dermatologist.
Hello from JustAnswer.
These may be obstructed sweat glands or possibly infected sweat glands. It also could be a diffuse infection of hair follicles. It would be unusual for a superficial skin problem to cause diffuse tiredness.
If you could attach a picture of the skin, then I may be able to say more than can be said based on the description.