Thank you for the kind feedback! The way you were losing health over time was due to you having low sanity, this value is lowerd when you are in the presence of an enemy and the lower the sanity value, the more health you lose over time. The sanity value does regenerate over time when you are not in range of the enemies. Stamina is lost when holding shift and moving (sprinting) and regenerates while still or walking but at half the rate for the latter.