Huskergirl, it is totally normal for anxiety to come back again with an increase in dosage. I just went back on zoloft for the fourth time and had the same thing happen after increasing from 50 mgs to 75 mgs. I've been on zoloft 3 times, and paxil once, in the past. Been dealing with GAD, PD, and Depression for 25 years now, since I was 14 years old.
But yea, don't worry about it, just keep taking your ativan with it, and soon enough it will go away. :) ((hugs)) Fox