Hi I am a 21 year old healthy male and i have had swollen lymph nodes for the past two months now.One is below my jaw the other one is on the right side of my neck, another one right near my shoulder and the last one near my groin area. they are all on the right side of my body and they range from 0.5 cm to 1 cm. I haven't been sick since like October and i have plenty of energy no night sweats no fever and no weight loss non of the cancerous signs. But I am still worried because they are not going away. Could it be because of allergies? also when i work out the one near my shoulder does hurt but the rest are painless. any suggestions to what the problem is? Thanks