My arm is slightly swollen and aches. No fever or redness. It's the pain that gets me and as @sueinmn mentioned I have had sore and swollen lymph nodes. No doctor visit. I think my doc would say it is in my head. He told me that after I reported I got sick from the flu shot. On Monday I get a Lidocaine infusion at the Pain Clinic and I am hoping that will help with my pain. I also may mention it to the nurse when I have that procedure. She always ask about my pain.