Correcting for astigmatism with eyeglasses is a bitch. Your eyes have muscles that tilt them sideways, and if they don't tilt your eyes to the correct angle, the image will be blurry.
The way I discovered this is that I noticed that my visual acuity would change if I tilted my head sideways. Your eyes will tilt to compensate, and this will bring the optics in the glasses out of alignment with the optics in your eyes.
It should hopefully get better in a few days.