Sometimes my tits are really itchy, and i can't help but scratch them

Id say if its deep iching and hurts see a doctor please.

Try a new cotton bra, and wash it in gentle soap not harsh detergent.

Could be your laundry soap. Try a gentle one and see if it helps.

that sounds pretty hot to be honest

u may affected by some allergy. consult a doctor,.
make sure your BRA is neat and clean and nothing is wrong in it...

Finally, a unique post. This is an interesting question. I've noticed the same thing too. Sometimes I wonder if it's the fabric of a particular shirt I'm wearing. I can never figure out why it itches. And it itches in kind of a painful way too. Anyone have any insight into this fascinating phenomenon?

Poor girl. A sympathetic boy could help you feel better.