nipples.

I was wondering if someone could help me. Ever since I found out I was pregnant my nipples have been a little strange. When I get cold and they get hard they hurt like almost this burning feeling that literally brings me to tears and they itch. Has anyone else had this before? If so does anyone know of something I could put on them for the itching? My dry skin lotion isn't helping. Also I didn't know where to post this, so I'm sorry if it's in the wrong group. Thanks (: