I may be in the midst of a PFP episode right now (and for the last 3-4 months), if it consists of pain when I press on the bottom center of the patella or the top center of the tibia. Surprisingly, if I tense up the patellar ligament, nothing I can press on hurts. Have been to PT back in 2016 for knees but for various reasons not gotten there yet this time around. I have had the suspicion that it is less like an injury per se and more like an inflammation that tends to keep itself upset. Have been doing a good bit of cross training at FLX Fitness including squats and hip exercises with resistance bands. Thanks for the info!