Help Please😰

Lately ive been a lot more sick then i normally am. Ive been really bloated, and ive been throwing up and have terrible headaches. I had finally had my period last month but it was late but it was black the entire time not with a heavy flow but i had terrible cramps. Last week i missed days of school (and it was the only 2nd week of school for me) and i had the worst stomach cramp that i couldnt even get up and walk and it hurt to move. Im seeing a new gyno next week and i dont know if this is something to worry about.