Male 21 years old. i have had a lump under my skin in my left groin and also my right side. they're not painful, soft, can somewhat move. ???

Probably lymph nodes: If this is something that just recently showed up, the lumps are most likely lymph nodes if they are located along the inguinal fold/canal. Epidermal inclusion cysts are also common in the groin, but are usually hard, not soft, and infected cysts/furuncles are usually tender. See a Dr if they don't go away or start enlarging an/or multiplying.