Can I ask how long you've been on it, and whether you've been taking it on an empty stomach? Metformin (Sukkarto) is sometimes better tolerated when you've had food prior to taking it. If after two weeks the side effects don't abate, they're not likely to though. There are more options, you don't have to stick with one med if it makes you miserable. I first got gliclazide to replace the metformin, but after changing my diet around, it turned out I could do just fine without medication, and was taken off of it. https://josekalsbeek.blogspot.com/2019/11/the-nutritional-thingy.html might help a little in that department. In any case, good luck, and I hope you feel better soon!
Jo