Thank you for posting your query on HCM.
Well looking into your query there can be many reasons for these kind of symptoms , but still first and foremost frozen shoulder
needs to be ruled out , in it the movements become painful in every aspect over the shoulder and pain may radiate down to elbows even .
Rest cervical spondylitis
may also give rise to these kind of symptoms .An Xray cervical spine
will be needed to establish the cause .
You should keep on the treatment you are taking plus physiotherapy
is also recommended . Its going to take sometime for this pain to go .