I started having cramps today and i finished my period on sunday, is that normal or am i sick?

Normal: you are most likely normal unless there is other symptoms and signs that you forget to mentioned cramping few days after period end is normal apply heat pad take Midol,or Ibuprofen keep your bowels regular hydrate well and rest if you can

Normal: You are young and it is normal to have menstrual cramps, usually relieved with the use of Advil or Aleve (naproxen) if you are not allergic. Certainly a good time to see your GYN- BC pills may also help.