Severe stomach pain along with chest pain can occur due to gastritis, acidity, or severe gas, but it can sometimes be related to a heart problem as well. You may try taking an antacid and rest for some time, but if the pain is severe, spreading to the arm or jaw, associated with sweating, breathlessness, or does not improve quickly, you should seek immediate medical attention to rule out any serious condition.

If you are unable to keep your hand in the same position and feel discomfort while performing activities like throwing a ball, it may be due to muscle strain, tendon inflammation, or joint overuse. Anti-inflammatory medicines such as Ibuprofen or Aceclofenac are commonly prescribed to reduce pain and inflammation. Resting the hand, avoiding strenuous activities, applying a cold or warm compress, and doing gentle physiotherapy exercises can also help. If the pain persists or worsens, consult an orthopaedic doctor for proper evaluation and treatment.

If you are having continuous watery stools after acidity, it may be due to stomach infection, food intolerance, or irritation of the digestive system. Make sure to drink plenty of fluids and use oral rehydration solution like Electral to prevent dehydration. Eat light foods such as rice, curd, and bananas, and avoid oily or spicy foods. If diarrhoea continues for more than a day, becomes severe, or you notice fever, vomiting, or weakness, consult a doctor for proper treatment.