Seems little arthritis in shoulder joint and could be onset of frozen shoulder. The treatment doesn t vary much. Please initially take some antiinflammatory 1 sos ( but do not make it a habit). Start taking turmeric powder 1/2 tsp in warm milk or warm water daily once or twice. Turmeric is a natural, potent healer, bacteriostatic and antiinflammatory. Safe. Cap Shigru and Tab Rumakya forte 1BD each for 4 weeks. Prefer with warm water. Safe. No side effects. Light massage by Rumalya oil over shoulder, painining area ( though my choice is Mahanarayan oil - a classical Ayurveda medicine, but not commonly available outside India and little smelly too but very effective). The massage should be preceded by hot water bath. Let oil be there max time possible. For sugar, pl start cap Karela (or cap bitter melon)1 bd with water. No side effects but monitor sugar levels regularly. Sometimes in a week or so cleanse your bowels by mild herbal purgative. Say Tarunikusumakar chooran 1 tsp at night. As the pain starts subsiding start some yoga exercise/ deep breathing etc. Do not do exercise when it is raining much. Pl revert after four weeks. Hope it helps you.