I am 20 years of age. Ten years ago, I sustained an injury to my left knee, which was later diagnosed as a torn ACL ligament. To address this, I underwent a successful ACL reconstruction surgery (using a hamstring graft). Recently, I experienced a sudden jolt to my knee while sleeping, followed by another impact when a heavy object fell on it. Subsequently, I have been noticing mild discomfort when extending my leg, along with more intense pain when applying pressure to the area where the incision was made for drilling, specifically on the lower bone's left side, which is to the right of the knee. I am concerned about the possibility of the screw that was used during the surgery being displaced or damaged due to these incidents. Unfortunately, I am currently facing financial limitations. As a result, I am seeking advice on steps I can take at home to assess whether everything is fine or if there might be an issue. It is important to note that I would prefer not to inform my parents about this situation. Please help.