I have a small lump at the top of my left nipple that is sore. It has been sore for one day.  I am 36, male and am on the ChatDoctor diet currently taking the drops. I feel pretty tired when I get home from work and have felt like I was fighting off a headache, tho today I feel alright.
Hi.it is best if you consult with a doctor, preferably a general surgeon, for clinical evaluation of your breast lump. It could just be an inflammatory reaction, but it could also be a lesion. Breast ultrasound may be requested. Management (medical and/or surgical) will be directed accordingly. Hope this helps. Good day!!~ Chat Doctor.