Hi, friends. I recently repotted my diffenbachia and the sweet thing is now wilting on the large leaves from the outer edge of the leaf inward (such a strange description). It is still producing new growth but seems to be really struggling. I have about 2 inches of pea gravel in the bottom of the pot as well as used The soil it was living in during the transplant process and only added about 8 cups more. Any ideas how to help her out? Photos attached.