Do I Need Continue The Antibiotic If My Throat Infection Reduces?

I am recovering from non type A strep throat. My doctor prescribed me a 10 day dosage of amoxicilin, but told me that unlike a normal course of antibiotics it was not, in this case, essential that I continue to take them for the entire 10 days. She said that if, for example, I felt 100% by day 7, it was ok for me to stop, since strands of strep other than type A are less dangerous and do not actually require the use of antibiotics except to relieve symptoms and speed recovery.

I have now finished day 4 of my antibiotics, am feeling well, but am suffering from nausea, headaches, and indigestion from the medicine. I'm taking probiotics to counteract the negative effects but they do not seem to be helping. Is it safe for me to discontinue use of the antibiotics now?