Dog is suddenly hesitant to jump

It does sound like she might be having ear issues. I would start using the drops in her ears as a precaution The hairy growth on her paws,,, have you tried to carefully cut it out? It might be part of the problem and it would not hurt to try removing it. I hope you find work soon. I know how hard it is to be out of a job, especially when you have pets to feed. We are lucky in that there are a couple of sources here for food for pets when you cannot feed them. Our local Humane Society usually has excess donated food that they hand out to those who need it.