Thanks for your query at DoctorSpring.com
I am Dr.R.K and I am pleased to assist you.
Yes, you have symptoms of irritable bowel syndrome and it is getting worsened by anxiety.
There is no specific diagnostic test for irritable bowel syndrome.
Other similar conditions should be be ruled out.
A complete blood count, stool analysis, thyroid function test, tests for celiac diseas, small bowel biopsy and a colonoscopy need to be done.
You can discuss with your gastroenterologist for getting these tests done.
Meanwhile, you can take librax and probiotics for relief.
I hope that answers your query.
Let me know if I can assist you further.