Pain just below the left ribs can happen for a few reasons. Common causes include:
Gastric issues like acidity, gas, or indigestion.
Muscle strain in the chest or abdominal wall, especially if it worsens with movement or while running.
Stitch pain (exercise-related temporary pain) which is common when running, especially if running after a meal or without proper warm-up.
Less commonly, it could be related to the spleen, pancreas, or heart, but those usually cause stronger or associated symptoms.
Next Steps
Note if the pain is related to meals, stress, or exercise.
Avoid heavy meals before running and do proper warm-ups.
Try lifestyle changes for acidity (small meals, avoiding spicy/oily foods, not lying down immediately after eating).
Health Tips
you need consultation
If the pain is persistent, worsening, associated with vomiting, fever, weight loss, or shortness of breath.
If it interferes with your daily routine despite simple measures.