I have been noticing multiple lumps , which are I guess in my veins since some time. The issue arised when they started paining. There is one such lump just below my right hand's elbow and it pains way too much after I go for any sport like badminton, basketball.The pain subsides in few days, but comes back again. All the lumps are below elbow in both arms. I have around 4-5 lumps on right arm and 3in left arms. Not too much swelling but little rise visible on paying heart attention to these lumps. These can be felt by touching, and pain on pressing them.