Dear friend, welcome to HCM !
Inflammation usually causes pain, may be burnung type in your case.
A high ESR
suggests an inflammation.
You need to do an Xray chest, Xray right shoulder-AP and Lateral, ECG.
What other tests have been done?
Is the movement range at the shoulder reduced?
Is there cough
, rib pain
We need to get differentials fast and I think 2 weeks time is unwarranted. get complete evaluation now.
Take care and please keep me informed of your progress.
Good Luck !
I hope to have answered your query satisfactorily.
May I request for your rating and review of this answer before you accept the answer and close the query (if there are no more follow up questions)?
Thank you !