Metformin... please help?!

La

I start 500mg one a day last Thursday so I’ve been taking for a week now and the first couple days was fine but now it’s giving me really bad stomach pains and toilet problems (rushing to toilet), waking me up at stupid times to go to the toilet. I have ibs too and not sure if the tablet is fekin my ibs up. Just wondering if anyone has been the same on this tablet and any suggestions? Am thinking of stopping it because of the pain but I really want this tablet to work. I am meant to be upping my dose next week but I don’t want to because I am bad now upping the dose is just going to make me worse isnt it? :’( Someone please help :’(