Hi ! Good evening. I am Dr Shareef answering your query. If I were your doctor, with your history of trauma and no bony injury in the x-rays, I would advise you for an orthopedic opinion who might suggest you for a MRI of the affected knee to rule out any ligament or cartilage injury. Rest of the management would depend on the physical findings, and reports of the related investigations. Till then, you could go for an anti inflammatory drug along with a proton pump inhibitor for a symptomatic relief. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.