I have body aches, headache, and my right breast hurts a lot especially when breadt feeding.. what could it be?

Infection: Could be unrelated viral illness, or mastitis (infection of the breast tissue). You can see nipple discharge, fever, and/or skin redness, but you should call your doctor now. Antibiotics are needed if it's mastitis. You can keep breast feeding. Good luck!

Breast pain.: This could be a mastitis or infection in your breast and it may require antibiotics. Other possibilities are a cold or flu associated with breast congestion. See your ob/gyn or pcp to examine your breast or at least a breasfeeding specialist.

Infection: A common problem with breast feeding can be an infection called mastitis and can give you the symptoms you describe. It is not uncommon and can be treated with antibiotics and breast pumping for a period of time. Warm soaks to the breast may help. I would suggest a call and possible visit to your ob.