Hi, i have a mountain bike and every time I ride it, i have my knees hurting in the front of the rotula. Also my hands became numb after 15-20 minutes of riding. I'm 183 cm height, 89.5 cm inseam. The saddle height is at 89 cm , mesurements from the pedals ( not the BB). The saddle is set following the knees over the pedals technique (the line is front of the knees ). Can someone help me please. I attached a photo with the information of the bike, it's the XL size. I need your help please

Hello everyone, I’m from Canada, 40 years old and fairly new to the world of road cycling. I started riding in May this year and have been thoroughly enjoying every bit of it! However, back in August, I made a few adjustments to my bike, including changing the saddle height and moving it slightly forward (I think). Since then, I’ve been experiencing pain on the outer side of my left knee. I usually ride 3–4 times a week. Initially, the pain would start after around 30–35 km, but over the past three weeks, it has progressively worsened and now begins after just 12–15 km. Once the pain starts, every pedal stroke becomes extremely difficult. The pain also persists for at least two days after a ride, making everyday activities such as climbing up and down stairs and putting weight on my left leg very difficult. I’ve had a professional bike fit, during which my position was adjusted slightly. The stem height was lowered a little, and I also changed my crank length from 172 mm to 165 mm. In addition, I’ve attended a few physiotherapy sessions, but unfortunately, we still haven’t been able to identify the underlying cause. Has anyone experienced something similar, particularly pain on the outer side of the knee that gets progressively worse during rides? I’d really appreciate hearing about your experiences, what helped you identify the cause, and what ultimately resolved the issue. Thanks in advance for any advice or suggestions! -Sany