Shooting pains in your breasts could be an indicator of a yeast infection. This is caused by damp pads or covering your breasts while still wet. Many women get this if they don't airdry well. Sometimes baby also shows the symptoms with white plaque in his mouth and a dark red area around the anal opening. A pediatrician can diagnose this in baby and many times an OB or a Lactation Consultant can offer help to mom. There are medications and treatments that will help clear it up and it needs to coordinated so that mom and baby are both treated.
It sounds like you need a consultation with a lactation consultant to help you assess the problem and teach you how to deal with it. Often a baby will pull off if there is a yeast infection because it can alter the taste.
Having said this there are other things that can cause the symptoms you have mentioned so it would be helpful to see an expert and get a definative diagnosis.
I would be happy to help, you can email me or call me at ###-###-####
K. Willis Rn, IBCLC
@ The Nesting Place