I am a 66 year old female. I do hard physical labor, which included, this summer, lifting and throwing hay bales that weigh about 50 pounds. About eight weeks ago I began having a slight, infrequent vaginal discharge. a couple of weeks after that, I had lower back pain. I thought I might have a kidney stone; I had one a few years ago. I went to a walk in clinic where they x-rayed my back and said I had arthritis in my spine and a UTI. I took antibiotics for 7 days, and said to follow up with an orthopedic specialist. Can back strain or arthritis cause a vaginal discharge ?