I am 14 years old. Recently, lots of my lymph nodes have swollen up. This was about a week ago. Now, a lump has appeared, as if from nowhere on the back of my head. The lump is hard and non-moveable. It is not painful if left alone but when pressure is applied it can be felt. Is this connected to the swelling of the lymph nodes? Is it a lymph node? Should I wait to see if the lymph nodes around my body go down before I go and get it checked out by a doctor? Thanks, Simon Barnes