Hugs Brownie!! This getting older stuff sucks, doesn't it? After I had my tkr done, it seemed as if all my other joints improved some. I had just gotten diagnosed with plantar fasciitis right before my tkr, as well as a frozen shoulder. They were fine after the tkr, but as time has passed, now they are back reminding me they are there. And I have some new hip pain (very nerve like). I do suffer with chronic pain, and am still on pain meds daily for those.
I did have my other knee injected with cortisone at my 6 week visit and it is still doing pretty good and its already been 3 months. It was really complaining alot after the tkr. I think I may get away without needing the right one done at least for now. It does not like the cold, but other than that its doing well.
As for your cold, we got ours at the same time. Lucky for me, mine was just a cold and after a week I was doing better. I still have a bit of a cough though. I hope things quiet down for you soon. Hugs!