I went to the ER after my knee got injured during ...

I went to the ER after my knee got injured during sport activity.They did X- ray and said everything normal just go home take rest and put some ice on it.
I followed what he said....
I had other injuries years ago and I knew how it feels when something not "normal".2 weeks later I got an appointment somewhere else and ultra sound showed the PCL in my knee is torn.
Now I waiting to get an appointment for MRI.If they find other damage I have to go to surgery.
Recovery takes 6-12 months.