Well, without a clinical evaluation it would be difficult to determine the cause of the lump
or your symptoms. Possible causes of the lump
include cyst, lipoma, growth from the bone or surrounding connective tissue etc. Your symptoms could be related to postural issues, neuro-muscular causes such as muscle sprain, nerve impingement, injuries to muscles/ ligaments, injuries, inflammations, spinal causes such as degeneration, micronutrient deficiencies, medication side effect etc.