SPOILERS!! (Sherlock last episode) if you haven't seen the last episode of Sherlock yet, do not read this. SPOILS EVERYTHING

Alrighty, i just finished reichenbach fall and let me just say...man oh man i have NO control over my feelings. I freaked out at the end. when he jumped off that building. I was crying and he was crying and John was screaming and i was screaming. I then got mad, VERY mad. i can't watch the next episode until. Next. Year. i am slowly being pulled apart from the inside. So to keep me from blowing up and crying in the middle of class (which is a very likely possibility), me and my friend have come up with a theory.

There are two parts:
1st part:
If you look at Sherlock's hands, they are behind his back. If you look closer, he is concealing his phone in his coat sleeve. Why? well. Now notice how Sherlock acts, not like him right. He is playing stupid, acting dumb, asking questions as if he doesn't know. Sherlock NEVER does that. He is recording Moriarty. The phone is to record him and when he calls John later on, he throws the phone on the roof so it didn't get damaged during the fall.
The fall (2nd part)
If you notice, when John starts to walk toward Sherlock, Sherlock makes John move back so now he is standing just behind the corner of a building. When you first see the ground when Sherlock looks down, there isn't a tuck there, but when he falls...there is. My friends theory was that Sherlock actually fell into the truck on something soft and the cyclist who knocked John over was part of Sherlock's homeless network so that he would have time to get back out and Molly (who was in the truck) had put like blood stuff on him. As for the no pulse, a little earlier in the episode, Sherlock was playing with a small bouncy ball. Easy, just put it under your arm and it stops the pulse from reaching your wrist. He was taken away really fast because the hospital was the building he jumped off and one or two of those people were working for him.

This is probably a VERY long shot in what happened but i like the theory and until i see the next episode, i will be contemplating other theories and will post more if i find any good ones.