I Have Taken Generic Actos For Years, New Bottle, New

I have taken generic actos for years, new bottle, new maker, evening blood sugars as of 1st day a lot higher as they have been for the last 16 days, took 1 of my old prescription pills, back to normal reading. Same dosage, only difference is maker of pills. Called the drug supplier, they said must be medicine isn't working for me any longer, call my doctor. The pills match the description supplied so am sure they send me right pills just don't believe it is the same strength. How do i get the pills tested to make sure they are correct strength?