I went biking yesterday & have sore muscle, mild eye distortion. is this normal?

Maybe/migraine?: Sore muscles after exercise are normal symptoms, particularly if a new activity or a more strenuous exercise bout. Distortion in vision is more difficult to answer. Are you a contact lens wearer? Did you wear protective eyewear during cycling? If your eyes were feeling irritated afterwards, you could have had excessive ocular dryness. Or visual distortions could be migraine related too.