If i was you i would stop squating for a least 3 month,I had a Problem with my knees about 6 years ago,i had a lot of pain after doing squats.I continued with squating twice a week,took pain killers etc.This went on for about 3 months,then one day i was squating and my knee just buckled and i had to drop the weight behind me.I was lucky because i was just warming up.Now my knees are damaged so i no longer do squats.I now do leg presses for legs which are fine.