I wanted to share something with you guys in hopes to get help and to see if any of you have experienced this. It seems like every time I’m in a fight or I want to punch someone I cant! I attempt to but my arm feels heavy and cant quite make a full swing. This made me think about it deeply…so I came up with a possible answer. Perhaps I cannot punch in my dreams because I have never really been in a physical fight IRL. I mean I can punch and I sure I can defend myself but I dunno what do you think?
IRL I don’t dare to punch people, I keep on thinking of all the trouble I would get into, so I slow the punch before it hits. However in dreams I can punch. Even if my punch goes slowly, it smashes people. That’s weird isn’t it? Perhaps it’s because I thought it would do damage that it did.
It could also be that whole deal with still being somewhat aware of your physical body. You’re trying so hard to punch, that you’re also trying to move your physical body to make the move, so the SP translates into the dream as a slow sluggish punch.
Well I mean this has always happened and I have been LD’ing for over a year lol.
I can’t punch in dreams either. It’s ok though, cuz I don’t really wanna punch anyone. 
Same here but I just find it funny how I cannot punch.
Imagine what you want to happen to the person after you punch them, then imagine yourself punching them. Let me know if that works.