I finally got my shipment of primo and plan on injecting 500mg per week, 250 on Tuesday and 250 on Thursday. I did 2 injections in the glutes and they felt fine but the muscle was tight. I decided to do a quad injection and injected close to the knee area. Since then, I have a problem walking and can't seem to bend my knee without being in pain. I checked the injection site and it said half way between knee and hip. I realized I missed up. Any suggestions?