FAT BB'S?

Since I have lost weight I can feel little nodules under my skin on my thighs. If you press them hard enough they squish. You can't see them from the outside, but rubbing my legs makes me think of bubble wrap. Is this cellulite? Are theses fat deposits? Are they lymph nodes? Can I diminish these fat bb's with more exercise and weight loss? Weird I know, but I get different answers from different medical persons.