Period

kacy
So for the past couple days I've been feeling like im litterally on my period except my boobs dont hurt. And no nothing coming out. And my period is 2 and a half weeks away. This has never happened to me before. . Ive never felt like im on my period when my not. It feels exactly like that. My lower back is killin me and I feel full and crampy and but I usually dont cramp aaand since the other days ive been having random sharp crampy pains. Its weird and im so confused and lost rn. What could be happening? !