Feeling sick

Well I don't know what's up. I've been completely nauseous for 2 weeks straight and I had my period Oct 7-12. Aside from nauseous I've been super hungry and going pee alot my boob's are heavier after I release them from the bra lol . And my tummy is hard and sensitive and ITCHY ... I've been craving Chinese for weeks even after I eat it I still crave it. But I don't know what's going on... any help?