After depleting initial stamina its like it just does not regen past a certain point resulting in only being able to run for a max of 10 seconds. Without being able to see a stamina bar its hard to diagnose and it seems sleeping is gone.
I stood in one spot for 10 min only drinking (i had to atleast twice to keep from dying) and when i timed how long i could run it was less than 5 seconds till my stamina was full depleted again.
Fixed as of 0.9.22.5, which adds proper buff indicators for health and stamina.