Hello,
I have been successfully growing my plumeria all summer (I had first year blooms!). We recently had Hurricane Sally come through and it knocked over my plant twice before I brought it inside. I am noticing rapid leaf yellowing and then drop. It is 4 ft tall and in the biggest pot I can find. I do not think there is a bug problem, but I could be wrong. I always try to be careful not to under or over water. It gets A LOT of sun. I have included a picture of it at its healthiest and pictures of the leaves now.

Can anyone give me some clues on what could be happening? How should I help it? Is it just recovering from the trauma of falling?

from the close up pic of leaf it looks like you have a web and also mealy bug, could be spider mites they are hard to see. I hope someone else can give an opinion.