My periods lasted as per normal 4 to 5 days, but after eating some cold stuff, it started AGAIN. Why

This is the thing about periods you can go without having one for one to two months i have seen them stop get heavier to no period or two periods a month to just spotting. Do you have a cold?or feeling not so great they can act up to that to are you on birthcontrol sometimes that can cause it anxiety or stress can cause it.