i just bought a 2 yr old jersey from a dairy.. she gives milk and is well tamed.. but here bag is very swollen and tight. no sign of blood in milk. i have 4 calfs on her now (jersey).the only thing is her bag is swollen and tight even after she is milked all the way out.the man i got her from said he fed her to good before she calfed.he called it over condtioned. she is fresh in now,she had a calf about 9 days ago. she acts ok,not sick feeling but he bag is like a ballon, hard tight and swollen even after milking.... what do i do..