Metformin questions


Hi ladies! So I'm on metformin for my PCOS. We are TTC #2 this spring/summer. Last time I took metformin it took a couple weeks and my system was used to it. This time it took about a months to get my GI system used to it. I recently started to work on weight loss and have lost 14 pounds. Since the weight loss it is like my stomach is starting over. My GI system is revolting and I'm sick of using the restroom. Is the weight loss and return of the GI sysmtoms related? Anyone have experience with this?