Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
Could you please elaborate do you have convulsions when you get a headache or do you have confusion?
As far as the knots at the back of your neck are concerned they could be a cyst or an abcess or even a benign tumor like lipoma. I would advise you to schedule an appointment with an ENT specialist as soon as you can as exact diagnosis can only made on examination.