Hello, I've been taking metformin xr for a few years now but take 2 in the morning and 2 in the evening as someone said it helped with stomach issues, and to be fair it did help, however I've noticed now that my sugar levels are creeping up and thought maybe I should go back to taking the full dose once a day at night as recommended. Has anyone changed from twice to once daily and if so did you just switch the following day or did you take 1 in the morning and 3 at night for a few days first. Not sure how to go about it. Many thanks