Hi, I had a hard impact on my knee about 6 weeks ago. 5 weeks ago I went to the doctor, since I still had a lot of trouble going down any stairs. I was told that there was no fracture, to take anti-inflammatories for a week, and to try to stay off of it for 2 weeks. Now, going down stairs is ok. But I still have pain/stiffness during deep flexion, and a hard bump has formed where i hit my knee. I have sharp pain if I try to kneel on it. should I go back to the doctor or will it resolve over time?