soreness and sensitivity

Rozlyn
So I haven't gotten my period since October. Doctor said I'm negative for black I'd and urine pregnancy test.  I've been sleepy a lot the past two months and my appetite has changed quite a bit. Lately my breasts have been very sore like I want to cry, yesterday morning I was getting for work and I hit my nipple on accident and I wanted to scream. Is this normal or..?