Continuous pain in both knees. Had some relief when i used to take Vit D3 vaccines for 5 months earlier, but now even after S Vit. D3 blood reports are normal the pain persists. Pain was sudden and not gradual, and i have not done any sports activities or gym in last 2 months. Pain relieves by 60-70% after foot massage though, or soaking feet in hot water. Also after changing my footwear and pain has reduced by 20%, i used to wear Crocs for full time.