Finally I think I figured it out!

I've suffered with IBS symptoms & anxiety my whole adult life. I found Gluten Free diet in the last few years has helped tremendously & I have loads of energy, no constipation, pain, wind, mucus in stools (sorry grose I know) 20 years later I've been diagnosed with Helicobacter (why the Doctors didn't check for that when I first started getting chronic diarrhoea, cramps, weight loss etc I don't know).

My Dad's always had stomach problems, we thought it was a genetic bad stomach. He recently had a breath test & confirmed he had Helicobacter, people living together catch it off each other & I had a blood test to confirm I have it. I've had a course of antibiotics but don't feel they have worked as I don't feel any different. I feel a lot better from eating a gluten free (regular painless BM's, not anaemic etc) , low dairy diet and avoiding Vinegar & tomatoes have stopped the diarrhoea. I need to fast & do a breath test to see if it the bacteria is still present. But I recommend anyone who is having tummy troubles, constipation, diarrhoea, anaemia, infertility, miscarriage, anxiety, depression, low energy get tested for Helicobacter Pylori ASAP. Its bacterial & so easily contracted, I wouldn't be surprised if 50-80% of the population have it. Good luck!