Paul......Anytime you change your diet there's a possiblity of digestive upset. Adding the fruits and veggies that you didn't normally eat most probably has caused you to have the extra gas. Cut back on them for a week or so and see if it helps. Then add them back a little at a time to give your system time to adjust. Gas pains can extend into the shoulders and back. Good luck and let me know if it helps. :)