Seroquel withdrawal -- nauseous

This is going "cold turkey" off 6.25mg. What the ****

I reduced from 400 down to 12.5 (which is 1/2 of the smallest tablet they make) and I was fine... and I was fine going from 1/2 a tablet to 1/4 of a tablet, but apparently going from 1/4 of a tablet to 0 makes me want to throw up