Hi and welcome to HCM. Thank you for your querry.
It doesnt sound to me like something serious. If you experience more intensive pain with vomiting
or notice blood in stool
you should go to hospial. if not, just eat light food, water and teas. Avoid food which makes you bloaty,alcohol,carbonated drinks and fats. It can be diverticulitis
again if you feel pain i lower right or left parts of stomach. in this case antibiotica treatment should be started. I think that nothing bad can happen till tuesday. Colon
perforation is very rare and you would feel enormous pain.
WIsh you good health.