Hi there,

I think it may be time to go and see the doc as physio doesn't seem to be having much effect. I would advise that you mention to him the fact that you have pain that wakes you up at night, and also the lump that you described behind the clavicle on the affected side should be looked at. There is a medical condition called a Pancoast tumor which can give a pancoast syndrome. it is commonly misdiagnosed as a musculoskeletal problem when in fact it is a lesion that starts growing on the top part of the lungs and can end up spreading to the nearby nerves of the brachial plexus causing weakness, atrophy (muscle loss) & pain. It would be a good idea to research this yourself and see if you think the symptoms fit and if so push it with your doctor. We are in the age of information so don't worry about coming across as self diagnosing if it makes sense.

all the best