Hi hello good day Doctor.I just want to know whats the possible reason why Im feeling pain on my upper left back,its clicking when I try to wiggles/rotate my left shoulder,every time I feel pain on my upper left back,I do counghing as well,I went to my GP doctor he gave me docycilin,I take in for twice a day for 14 days but nothing change,I mean not been cured,so Im nervous about my health,its been a month now that Im feeling pain like this.Im Glenn Bagaoisan 37 years of age,a Filipino citizen,resident here in Newzealand.