Hi,I have been doing a lot of heavy lifting in the past week while surrounded by particulates and vapors in the air (saw dust, paint fumes, etc). Two days ago, I noticed that my right occipital lymph node felt a little bit larger than my left. It feels hard and about the size of a pea. It s located where the top of my neck connects to the base of my skull. Am I correct on the location of the occipital nodes? My neck muscles have been feeling strained while accompanied by a stiff neck. Any ideas? I have no headaches, no night sweats, no fever. I am 29 and healthy.