Been on metformin for nearly a year was changed to slow release about 3 months ago due to stomach problems I was still having stomach problems so they told me to reduce the dose to one twice a day for a few weeks so my stomach got used to it then to go back to taking one in the morning and two at tea I did this and the stomach problems have started again I was on glucosphage but now it's changed to bromalyn and for last couple of days been having stomach like cramps it's driving me mad but what alternatives is there ??