Can metformin cause stomach pain and cramps at night? been taking it 2 months but just started the belly pain

Possibly: Metformin may be the culprit and,if so, take it with food rather than on an empty stomach. If symptoms persist see your physician for evaluation.

Yes,: it could be the cause of your discomfort, however, it may be something completely different as well. I would recommend seeing your doctor about this for a thorough history and examination. Best of luck!