I am a 66yr old woman with osteoarthritis. My fingers are getting worse.About 4 mths ago the first joint middle finger left hand became worse almost overnight at the same time the nail appeared to start going yellow which again is worse over time. I have always have week bendy nails but now this one is hard and appears thicker and stronger.No problems with other nails.It can't be Raynauds as it's not white,cold or numb. It hasn't gone to any other nails either. My GP is only doing phone calls unless the Dr feels the need to see them in person due to Covid. I also have had pain my wrists for a long time and now notice a Ganglion my my right wrist and wondered if this could be causing the pain in my Right index finger to be worse as I had so much pain down that and inbetween index and middle finger on my right hand ? Any thought or advice would be appreciated.