Hello. I find that my lymph nodes in my armpit swell and then go down after several days. This has been going on for a couple years. Last night I felt alot of pain in my armpit and it felt like tingling going down my arm into my fingers. I felt and my lymph nodes were really swollen and tender on that side, normal on right side. Today they are still swollen but not as bad as last night. Should I be worried?