What Causes Sharp Pain In Lower Abdomen And Vomiting With Elevated WBC?

Hi my name is leah I'm 21 years old I just found out no to long ago I had a cyst in my ovarie I have a he'd time going to the bathroom I had blood work done and they said I have a high white blood count that's been going on for weeks now I get bad sharp pain down low on my stomach I vomit alot and I feel hot one minute then I'm cold the other