I am a 35-year-old male and over the past 8 years I have noticed lumps under my skin, started with one on the forearm that has double in size (compression on the arm makes me think that perhaps there are two very close to the each other). Another pop up about 2 years ago and is growing. Recently, I felt another tiny one, all three in close proximity. I physically examine myself and found another on my back and another on the left side of my abdomen. Kindly advise on what I should do next.