Hi. This could be due to gastroenteritis (viral, bacterial, parasitic), however, since you have been diagnosed
with irritable bowel syndrome (IBS) which is a chronic relapsing condition therefore it is possible that you
may be having a relapse. It is important to remember that IBS is a chronic relapsing disorder characterized by
recurrent symptoms of varying severity. I suggest you consult a doctor for proper evaluation and management.
Blood tests, stool examination, or colonoscopy may be done. Treatment will depend on the underlying cause. It
would be best to keep yourself well hydrated to prevent dehydration; and avoid food and drinks which may make
the symptoms worse. Hope this helps. Take care and warm regards.