Hi. I play tennis everyday after school for about two hours. Recently I have been getting muscle aches on my back, and today there is a lump on the back right side of my head. It does not hurt, and decreases in size when back/neck are massaged. Is the lump from muscle tightness in back or neck?
HI. These are spasm lumps of the muscles. These appear due to localized muscle spam as a result of chronic repetitive stress injury. You have to stop playing the tennis for some time till your muscles are normalized, take a muscle relaxant and anti-inflammatory medicines. Before you start playing again take an opinion of an Orthopedic Surgeon / Physiotherapist associated with sports-injury and when they declare you fit then only you can play again. You also need a very proper trainer who can train you considering your problem of muscles.