Hey hotchips! The main point of doing RCs in the morning isn't to prevent false awakenings, but rather if you are prone to these, it may help you catch them and turn them into lds. So, it's a good habit to get into, especially if you get a lot of false awakenings. However, you may still do it even if you don't have these - all RCs are beneficial for lding.

Regarding pain, yes, it is possible to feel equally realistic pain in dreams just as you are able to experience anything else.