hello doctor.... my partner has a hard lump at the back of his head top of the spine, and he has had this for years since he was very young. its very hard and doesn t move at all but it hurts him when it is touched. it has lately been causing him a lot of pain and causing him to have headaches, also if he is stressed it causes pressure on the bump and hurts his head..we went to the doctors and they didn t help us very much said it was a cyst but it is not as we have had this confirmed, any advice would be helpful thank you