Re: Polymyalgia Rheumatica
The prednisone should eventually bring it under control but she had it for quite a while so it will take a while to resolve. Her initial symptoms in her foot were very unusual so it made it hard to figure out. PM usually involves shoulders and hips and not the sole of the foot.
Pred can make you gain weight and hold fluid. Her pulse is probably up from the pred but her BP really is okay. She has intense inflammation going on so having symptoms somewhat like having an infection would be natural(high pulse, lower BP). So either pred or the inflammation is doing it. I get the same way when my rheumatoid arthritis is in a big flare up.
Give it some time. This is not something that resolves overnight. She is on a low dose of pred so the lower the dose, the longer it will take to resolve.
Sorry she got this.