How much swelling is too much? And is dizziness normal 4 days after breast augmentation with fat transfer?

These symptoms could be within normal recovery, or be concerning.  An examination is needed to determine which it is.  I recommend contacting a board certified plastic surgeon in your area to see if someone will be willing to assume your postoperative care.  

Sorry to hear about your concerns.  You really should have the PS who performed your surgery manage your postoperative care.  If you are concerned, then I encourage you to seek out a PS locally but be prepared to have them charge you for this care since they did not actually perform your surgery.  I hope that helps and wish you the very best!Warmest regards,-Gregory A Buford MD FACSBoard Certified Plastic Surgeon and Author