HI,

sounds like a couple of you will be heading back to the dr. You should be able to take a stronger anaeilgaesic if you need it. It is common to have more milk than your baby can drink at this age, if you find you are feeling full and baby is asleep or wan't take any more, express a bit, just util you are confortble. An icepack or cold cabbage leaves on your breasts feel great and are very soothing. And rest - you are not well!
I would feed baby on one side for a "longish" time (don't you love how specific we are - not!) 20-30 mins and then, after a burp, offer the other side.
Barb