Cracked/stinging nipples Is this normal?
No, it's not normal, could be some sort of infection and you could try lotion
Is it normal to have 6 nipples?
Not if you have 6 boobies.
Is it normal to bite your own nipples?
its always great to bite your own nipples. i talked to my doctor and he said it takes away stress and reduces risk of breast cancer
Is it normal for nipples to peel in the early pregnancy?
Yes its normal, they are preparing themselves for breastfeeeding.
Is it normal to be experiencing numbness in your nipples during pregnancy?
Answer That is perfectly normal.