Alternating constipation and loose motions with pain after meals often points to irritable bowel syndrome, especially without blood in the stool or weight loss. Stress, low fibre intake, and certain foods commonly trigger this pattern.
Next Steps
Keep a simple diary of what you eat and when the pain or loose motions happen, since that often reveals a trigger. Eating smaller, regular meals and increasing fibre and water gradually usually helps.
Health Tips
Please see a physician or gastroenterologist if you notice blood in the stool, unintended weight loss, or symptoms that keep worsening, since those need a proper workup.