I'm 21, about 140lbs, 5'6. and average on the health scale, the past few days it's been really really hot, and i've acquired, what seems to be acne below my knee caps on both legs... Both legs itch real bad, the sores look alot like a white head pimple, and the itching gets worse at night, i have no bed bugs, scabies, lice, fleas, ticks, nothing, so what is this problem ?