the increased q angle and patella maltracking probably causing pain and grinding or clicking mor epainful when descending stairs??decreased control eccentric quads. you may also have general weakness but more around your medialis vastus oblique (VMO) inner thigh muscle so the outer thigh muscle is stronger therfore pulling the patella laterally and making it maltrack try strengthing the VMO first google vmo exercises and youtube them. firstly you could work on static quads, stretch hamstrings if their tight using PNF i would also rule out any internal rotation at hip and tight lateral structures eg. TFl and ITB also its wothwhile looking at your ankles and arches of the foot to build a clearer picture.


Hope this helps!!