From top of my toes, sides of feet, on legs, upper arms, top of hands, something has been biting me since May 27--I do not see nor feel the culprits. Some are size of pencil eraser up to half dollar; they itch profusely, but I do NOT scratch them. Have cluster on right side and left side of torso that burn, do NOT itch. Receive the itching spots from 3 to 18 daily, last for up to 6 weeks. On one day, my daughter counted 133, with 6 new next day, then 18 next, and so on. I go outside for 5 minutes daily to water 5 plants on my patio. My daughter lives with me, but does NOT have itching spots. HELP !!!