Mystery sickness or what?

Brianna
Ive been on birth control for over a year now. I am taking the highest dose for this particular brand. And im pretty good at taking it at the same time everyday. My problem is, I never throw up, but all of a sudden in the last month or so ive been getting sick just randomly. It would start with a slight headache and feeling feverish and achy then ill be sort of hungry but then all of a sudden i throw up! Idk if its my body trying to get rid of a virus I've been fighting for awhile now and didn't really realize or what. Two weeks ago i got sick one day randomly and was completely fine after throwing up, then the same thing happened today. Anyone know what is going on?