Itchy

Okay so this is all new to me.. I've never experienced anything like this before. I am a mother to 16 month old. I am currently not pregnant but we are ttc. Anyways! Recently (like 4 months ago) it all started where my nipples would just get super dry and itchy. Extremely bad. To the point I would actually scratch them and they would start to bleed.. I know it sounds crazy but it's true and it's miserable when they itch. I try so hard not to itch but sometimes I can't fight the nerve and then once I do they are SO tender and burn. Has anybody experienced anything like this? Any remedies?