Thanks for writing to health care magic.
First of all we should know if he is having loose motions or not.
A breast fed baby may some times pass 7 to 8 stools a day and this could be absolutely normal.
There is no need to worry about this particularly if it is not large volume stool or there is no blood in stool
or the baby does not have any fever
So your baby could be normal baby passing increased frequency of stool. Already I see so many antibiotics being given.
Hope this helps.