I agree with japdip. If you have a lump please contact a doctor. There are about 1500 men a year diagnosed with breast cancer and without a check up by your doctor you won't know. And if you feel strongly enough about what is happening with your body, please insist on a mammogram and ultrasound.
Best wishes
The most obvious symptom in males would be a palpable or visible lump in the breast tissue. As a rule male breast cancer appears in the later years but anything is possible. If you have noticed a lump (no matter how small) please make an appointment with preferably a Breast Specialist for an exam and possible Mammogram. Regards ...