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Since the blood and stool tests are normal, it is more likely that your diarrhea is more likely due to IBS.
Irritable bowel âsyndrome IBS, is a chronic functional disorder characterized by cramping abdominal âpain or discomfort with âalterations in ââââââââbowel habits (bloating, constipation, and diarrhea).â
IBS does not cause âany permanent damage or ââany serious illness but the symptoms cause severe discomfort & distress âaffecting an âââââââindividuals work, ability to travel and attend social ââevents.â
Most symptoms of IBS can be controlled with diet, stress management, and prescribed medications ââ(laxatives, antidiarrheals, âââââââââantispasmodics,
or antidepressants).
In case, you have severe symptoms âlike fever, loss of weight and appetite, âbloody stools, etc. you might be having conditions like - ââinflammatory bowel disease, malabsorption syndromes, lactose intolerance, parasitic infestations, etc.â âIn the absence of such issues, you need not worry about serious medical issues.
You might consult with your doctor for a Chest Xray and lung function tests to diagnose the cause of your cough.
A prescription of antidepressants and / or antidiarrheal medications can help to control your anxiety as well as the diarrhea.