so confused

i’m supposed to start my period in 5 days but i feel weird. i’m having mild cramps but they just feel different..i don’t know how to explain it. i’m also have left pelvic pain and it’s off and on on the right side, and that has never happened to me. i’ve getting super dizzy, especially if i move my head or stand up and start walking. are these just PMS symptoms that i’ve never had or experienced before or could it be early pregnancy symptoms? help😭😭 i’m going crazy !!!