It sounds uncomfortable to have diarrhea and stomach pressure causing loose motions. These symptoms can sometimes be side effects of certain medications, including those used for blood pressure like Cosart-H Tablet, which may cause diarrhea in some cases.

• If you are taking Cosart-H Tablet or a similar medication, this could be contributing to your symptoms.
• Stay hydrated by drinking plenty of fluids to prevent dehydration from loose stools.
• Avoid foods and drinks that may irritate your stomach, such as caffeine, alcohol, and spicy or fatty foods.

If your symptoms persist, worsen, or you develop additional signs like severe abdominal pain, blood in stools, fever, or dehydration, please consult a specialist doctor such as a gastroenterologist promptly. They can evaluate your condition and adjust your treatment if needed. If you are not on any medication or your symptoms are severe, seek medical attention urgently.To narrow down potential causes, we will need some more information.Please tell me your age and gender.