I just rubbed my daughter on the back side of the neck. There is a pea size lump back there, and unless she is going to be a medical "oddie" like the rest of the family- I know of no lymph nodes back there. Sort of one the side, towards the back, sort of where our musle line starts. No red skin or anything.She's awfully tickelish so I can't investigate consistensy. SAhe is 20 months, my little yellin' angel! Have anyone any idea what this might be?