Hey.. I've Been Sick Since Early This Morning. I Have

Hey.. I've been sick since early this morning. I have had an upset stomach, and nausea which led to me vomiting over 6 times in a four hour span (3am - 7am). I haven't throw up since 7 but I'm gagging and am unable to have a bowl movement? My mother and father (I'm 15, by the way,) have gotten similar illnesses over the course of this week, but their symptoms were diherrea and headaches, neither of which I'm experiencing at all. Is there any way to soothe my stomach and dry-gagging?