Do I have flea bites on my lower back or pimples that have scabbed over?

Flea usually itch. Flea bites may be clustered into 3 itchy bumps that bleed & blanch (turn white) when you press on them. They tend to be found at skin folds (breast or groin) & folds of joints (ankle, knee, elbow, axilla) as well as legs. A rash & swelling can occur as well as secondary infection from scratching.