Hello dear, The symptoms as mentioned in your post is attributed to either infection or inflammation in the Gastrointestinal tract, which may not be related to intake of fertyl tablets. The feeling of tiredness is due to the loss of fluid & electrolytes from body due to repeated episodes of vomiting & loose motion. Presenting with such symptoms, I usually treat my patients with: 1. Tablet Pantoprazole + Domperidone twice daily (to be taken half an hour before food) 2. Anti spasmodics like Dicyclomine preparation twice daily (to be taken after food). 3. Lactobacillus preparations. 4. Antibiotics like Ofloxacin+ Ornidazole preparations, OR based on culture & sensitivity reports to control the causative organism. 5. Oral Rehydration Solution (O.R.S) for maintaining the hydration status & electrolyte balance of the body. 6. Take soft, plain, non-spicy foods. 7. Avoid fast foods & gas producing food products like cabbage, etc. So, kindly consult a Gastroenterologist & start treatment as advised. Investigations like complete blood count, estimation of serum electrolytes, stool examination & Ultrasound scan of abdomen & Pelvis will be helpful in detecting any pathological cause for the symptoms. Wishing a good health. Take care.