You guys are like, wickit smaht.

Which is why I posted here. Thank you.

The pain is sometimes around the kidney, sometimes closer to the pelvis, sometimes groin area. They checked the entire area with ultrasound. All clear.

You know it is funny because on the Dolce, I was complaining (I always complain about the Dolce, and I probably just need to get a new bike - again) that it felt like I was not getting a powerful stroke, that my legs were not going up and down in a core centric way but in front of my core, and that the right leg was working harder.

I do not feel this kind of stress on the Giant cross bike (which has smaller cranks, but a different geometry - in fact, top tube is LONGER.)

I guess the ONLY answer is to go and get a proper paid-for fitting.