Is it normal i have a tooth growing back in and a tooth falling out..?

Yes.

u see, back in 1995, Monsanto started putting haai DNA into human babies, to see if that would stop the problem of toothlessness. The experiment was ongoing until about 2001, so u just may be in one of the last groups. If u are, then you're totally fine.

yes, it's a whole part in growing up from your adolescence. u are becoming a big boy/girl/whatever

Are u just talking about losing your teeth as normal younguns do of like are u a genetic abnormality of something?