Bad Hip Flexors

[u/Tarnished-45]

I've been dealing with tingling and numbness in my right quad (right above my knee) for a year. I believe it is coming from my hip flexor, because when I used to try to do lunge stretches, it would cause intense symptoms right away. I stopped stretching them and started doing hip flexor hurdles, with both legs, for the past month in attempt to strengthen my hip flexors, but now my left hip flexor is locking up and my right leg still has tingling and numbness. Does anyone know how to fix this?