Hi Docs. I’m about two years out from a rupture of my quad tendon. Pretty much symptom free, sometimes a little stiffness, but that’s about it. However, I occasionally “stumble.” I don’t know how best to describe it, like a momentary weakness. I never feel like I’m going to fall or trip, but it’s weird. Any thoughts about this? I’m otherwise back to full mobility, squats are moving up, active in sports, only while walking, never while squatting. Thoughts?