What these little red bumps that look like flea bites but seem to be spreading?

Derm eval. These lesions need to be visualized & a history needs to be obtained in order to make an accurate diagnosis. Sometimes lab testing or biopsy is necessary.
Could be many things. Red bumps on the skin could represent many things. If they itch, they could be bites from fleas, mosquitos of other insects. If they don't itch, they could be tiny blood clusters, called angiomas, that run in certain families.If the persist, and if they hurt or itch a great deal, than perhaps you need to visit a dermatologist.