I have about 6 or 7 knots relatively small in both my legs in random places, that appeared about a week ago as i know it. About 2 of them are big enough to see and the others i have to feel with my fingers. One of those two feels like it has liquid in it and all the others are like "pimples" under the skin. Ive also had swollen feet for a few days around the time they appeared. Can you please help me to determine what they are or if they could be deadly?