Knee pain

Last night was very strange. After doing my @ home exercises I started having rather constant and sometimes sharp pain at the top of the incision area from where they harvested the hamstring. As the night progressed, and Texas tried to come back on Alabama, the pain would not go away. I had completely stopped taking prescription meds but had to resort to them last night to get to sleep. Hopefully, I can get some answers today @ therapy. Right now the pain is tolerable with advil but last night was odd!!