Smokie's kittens meow constantly!! Help?

Yes, same as title, I don't know why they are meowing constantly!! ahh! Should I go buy KMR? So that I can help her feed them, and it not be as hard on her? Since she has 5 babies, I want to do the best I can for the babies, while I have them, I know that they have sore eyes too, but, I'm treating that, like I treated the other babies. But, any suggestions for me? Any would be wonderful! Thank you for reading!

Have you weighed the kittens? I've been doing a lot of research for Ginger's litter about to be born and several sites recommend weighing the kittens every day at the same time of day. The kittens should gain 7-10 grams each day. If there is no weight gain then kmr is needed. It also said that if the kittens are crying it's a good indication that they are not getting enough milk and need kmr. Hope this helps.

I agree with jennifer, start weighing them now , make sure its the same time every day, have you checked mums nipples ? make sure she is producing milk, or make sure there is no hard lumps , heat or redness around the arear.
trying them on some kmr is a good idea , if they are hungry they should take to it , but make sure you dont over feed them, sometimes its best to go to a vet and they will show you the best way to do this.
keep us updated .