There's been some stiffness resembling muscle soreness around the neck (not sure if something hurt in the gym or during sleep) but since she's a regular gym goer she ignored and kept going to the gym and also work and other stuff. The pain increased and there was a shooting pain at the base of the skull with some stiffness for a day and then it disappeared completely on one side. Now there's shooting pain on the left side only with some stiffness in the neck. No other symptoms like sensitivity to light or sound. No fever or swelling or anything else except for this shooting pain. Is it serious? Dolopar gave temporary relief but the pain came back.