I encountered a bug where my character moves slowly, as if i had exceeded the carry weight even though my maximum is not exceeded (or even close). I can still jump and fast travel, but cannot run. I am able to run for a step after jumping. Does somebody know how to solve this? I tried to reload the saved game, but this did not work.
UPDATE: I am not in hardcore mode, i do not have crippled legs and there are no effects active.
Best Answer
On the PC at least, Caps Lock key toggles "Always Run."
Did you accidentally hit it and turn it off?