Penis Fracture And Jammed :: Cialis Not Helping The Issue

I'm a healthy 25 year old male and I've been dealing with ED over the last year and a half or so after potentially sustaining an injury during intercourse. I had no major signs of fracture but jammed it very hard. My symptoms have become gradually worse since that time. These include generally reduced sensitivity, difficulty achieving maximum erections, extreme difficulty maintaining erections (doesn't ever seem to lock-in anymore), some increased curvature at base on one side. I have had a doppler ultrasound and pelvic MRI performed with no negative results, although neither involved induced erections. Cialis seems to help minorly, but nowhere near solves the issue. I'd love some advice on what this might be and what other tests can be done to diagnose it.