Has your doctor ever stopped your antibiotic therapy?

I received a phone call Friday from NP to stop taking antibiotics.
My first blood tests showed low white blood cell count.
Second blood draw Wednesday my WBC even lower.
I started antibiotics May 14 so not that long.
My thyroid numbers were up and this last test still up even though the doctor upped my synthroid medicine.
Now they are going to wait for my next appointment in August and draw blood to see if low count from antibiotics or not.
Has anyone been taken off of antibiotics that fast?
Very nervous about this because it took long time for me to decide to take antibiotics.
I think my PD convinced me because my blood pressure was so low and couldn't gain a pound.
My anxiety level is high! Thank goodness I see my grandkids tomorrow.