i stretch quite frequently actually...
i physically could not raise my right leg across my body though... it wasn't a pain issue, it was a physical mobility issue, my leg straight up wouldn't move.
i like TCG does physical therapy/kinesiology/OT days. this is fun
There are just certain stretches you will not be able to do, believe me I know. I have longer legs and a short torso with T-Rex arms. There are many ways to skin a cat, you just need to figure out what works best for your body type.