<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 17 years old, weigh about 68kg and am 172cm and have a good medical history no serious injuriesproblems to the body. I am experiencing pain on my lower left side, almost like it is a stitch- however I am not exercising when this occurs. It hurts to breath in and when I walk. I was wondering what it could be.  <response>: Pain you are talking can be because of four factor-cardiac-respiratorylungmuscularmost likelygastric acid peptic disorder, heavy oily junk foodanxiety or stress related2nd most likely in your caseat an age of 17 cardiac origin pain is highly unlikely it can be muscular or gastric pain most likely in case you feel flatulencepassing gasacidity heart burn after meals they also mimic cardiac pantry tab pantoprazole domoeridone slow release once daily before breakfast for 14daystab attracttramadol plus paracetamol for 3 days in case the pain is muscular 