What's wrong with my breasts? Help!!!

Chlionadh
Sticky Clear discharge from my left nipple but took a pregnancy test and it was negative.. I'm constantly paranoid I am and this happens to make me worse! I recently had a breast infection could it be back? Please help need some advice.. I'm on the pill & bar so I doubt I am but I'm so paranoid in getting sick over it :( oh and I'm also 16