Hi I am suffering from upper left arm pain, feels like I have been kicked, keeping me awake at night. I am a 66 year old active female. Slightly over anxious as a relative had similar symptoms just over a year ago, and was told it was probably frozen shoulder , but turned out to be caused by secondary cancer ( he had undiagnosed kidney cancer ( he died a few months later. Sorry, not usually the anxious type, have survived 11 knee ops and have chronic pain , so used to getting on with my life usually! Thanks.