I tripped and fell forward, landed on my left knee and sprawled out on my right side. My knee is getting better, but the day after my lower back started hurting and now I sometimes have sharp pains in that area. Also the right side of my right calf is sometimes achy and when I stand it feels a little weak.
Hi, I am afraid the knee is complex joint and the pain might need some time before fading out. Doing an MRI at times might help in making an exact diagnosis by your orthopedic surgeon. Physiotherapy coupled with Chat Doctor.  Being a bit patient to watch how the pain evolves could be an option. No serious worries for now. Kind regards