one breast producing more

Madeline • 24. Single mother. ✨
I'm breastfeeding and pumping. I've noticed a significant difference in my right and left breast the last few days. The left breast is producing normally and still feels heavy but my right is soft, light, and I'm only pumping 1-2 oz after feeding. Prior to this problem I was getting 5 oz off each breast in the morning and then at least 3 oz of each breast throughout the day. 
Is it normal to see a decline like this? 
What can I do to even them out? 
I pump after everytime I feed my baby during the day. Since this problem arose, I've been pumping the right breast longer and letting him feed first and lay on the right breast. I've also increased my water intake and cut out caffeine.