Suggest Treatment For Cold Flashes And Headache

hi im a 22 yr old women and for the past 2weeks ive been feeling really tired i get hot and cold flushes im constently feeling sick but not actually being sick i keep getting headaches which are not constent but feel like sharp pains i had a period 2 weeks ago and have the inplant so i dont think im pregnant any ideas to why im feeling like this??