Magnesium

Has anyone ever taken magnesium citrate if so how long did the affects last I took it yesterday around 1:30 pm and kicked in around 5 pm it made me feel a little nauseas but I managed to get some food in and I stopped pooping around 11 pm but now this morning I am back in the toilet it was very watery at first tmi but now it’s smudgy is that normal ? They recommended I take it since it looked like I was very back up and had a lot of gas and I was having so much bloating feeling after eating meals and having so many pelvic cramps like I had something stuck I had no idea being so backed up could cause pain I mean I did poop in the morning but maybe just like one two small pieces

But any suggestions how to make the poop stop or does it stop once your cleaned out