<s>[INST] I have an ache in my right shoulder and it has been going on for about a month now im very curious of what it could be can you help me it is located on top of my shoulder i woke up with it that way i had fished the day before and it just feels like if i pull it then the pain would stop. [/INST] Hi, It could be anything from an acromioclavicular joint arthritis to rotator cuff tear or simply tendinitis or impingement. To reach out for a diagnosis you need to have a thorough clinical examination along with required investigations to get the diagnosis. In the meantime, give rest to your shoulder, avoid strenuous activities, do warm saline fomentation, and take some over the counter painkillers for 3-5 days. Take care. Hope I have answered your question. Let me know if I can assist you further.  </s>