<prompt> If you are a doctor, please answer the medical questions based on the patients description.i had a deep tissue massage and later that night woke up to th worst migrane ever not a normal headach like crushing my skull headache for 2 days could do nothing hurt so bad . finaly eased up and now its been 2 more daysand my neck a little stiff butt what bothers me is there a lump or knot on my neck and hasnt gone away  <response>: Hello, Most probably this knot occurs due to deep massage which lead to soft tissue injury at your neck. I shall advise following to have relief in this:- Take a mild analgesic like acetaminophen for relief in pain.- Apply cold compresses over neck.- Avoid any hard work for 2-3 days. Most probably it will go away in next 3-5 days. Hope I have answered your question. Let me know if I can assist you further. 