My Doc Said I Have Osteoarthritis In My Joints I

My doc said I have osteoarthritis in my joints I have bruising and a swelling in my inner elbow my toes and knees are also sore and my index fingers are deformed I think its rhumetoid arthiritis but blood tests proved negative I have difficulty getting up from chairs I also have chronic odeama due to partial vulvectomy and lymph node removal from groins