Old age and CIDP

I will be eighty on my next birthday and have had CIDP off and on for three years. The diagnosis took a while because the neurologist suspected either a stroke or cancer. Right now I am in remission but my legs are weak considering that I was a great walker before this hit me and I still go a couple of blocks when I can. I receive monthly infussions of both solu-medrol and Gamunex and at my age it is difficult to separate side effects-like compression fractures and catarats- from natural aging.