Each of the exercises you've described are active exercise. Master Lin has given us a set of fundamental active exercise he believes will help our full healing.
Do what you can, and be confident in your progress.
Pain, will definitely make it more difficult to go into the emptiness. Since you can raise your arms for The forming of Yin and Yang, is it possible for you to follow the other movements in a limited fashion. Making smaller movements with your hands and arms.
I keep seeing small hand rapid hand motions, so I want to add that one should seek to slow the movements, regardless of the how large they make them
I've see people in a group doing these exercises, and I there is a wide range of variation in the movement. I sometimes change how I do a exercise; opening my arms wider, or raising my hands higher. The primary benefits come from the six keys.
With time I believe that your motions will grow into the fuller movements, as I've read here of others experiencing.
I want to add here, that SFQ is something to take into all parts of your day. Your diet, your exercise, your attitude about yourself and the world around you. You can open blockages all day long. You can prevent them from forming during the day. You can wear that smile and peace and loving every moment. (Good words for me to practice too.... and I try).
MB, you are perfection,
Iam2