Small lumps all over body. under arms, all over stomach, around labia and between vagina and anus. can't burst. can be painful. what could they be?

Dercum's Disease: Adiposis dolorosa, also known as dercum's disease, is a rare condition characterized by multiple, painful lipomas. These lipomas mainly occur on the trunk, the upper arms and upper legs. The understanding of the cause and mechanism of dercum disease remains unknown. Possible etiologies include: nervous system dysfunction, mechanical pressure on nerves, adipose tissue dysfunction and trauma.