Natalie - have you been to your usual GP with these symptoms and had any tests/ultrasounds/scans etc. I only ask because I know someone who had very "similiar" symptoms to yourself and after years of trying herbal remedies for pain, gas, bad digestion - thinking she had Gallstones and everything else under the sun she was finally diagnosed with a hernia. She suffered awful pain under her ribs and down her sides. Maybe the probiotics are just causing you lots of gas which is then causing you pain - I cant take probiotics either because they cause so much gas and pain in all kinds of places.