Breast sore, sensitive nipples, fatigue, bloat, vaginal discharge, mood swings, headaches, stress, dizziness food cravings pregnancy test negative?

Many possibilities: Your symptoms are not instantly diagnostic of any one particular illness or problem, and so you should see your physician for an evaluation. Have you had any changes in vision? Unusual hair loss or hair growth? Are your periods still normal? These are all relevant questions you should be asked and can answer to help guide further workup. I don't want to scare you with vague possibilities.