Healing/Healthy refer to the player's Health, not Blood. If your blood is not full, you will not heal (regenerate Health) nor will you be healthy. Unless you meant that those statuses don't return once your blood has fully regenerated, then this is not a bug.

I noticed this with pistols only. If I am prone and attempt to equip a pistol (I tried the FNX and the Magnum), the character will pull it out and then put it away. However, pulling out any other weapons works as intended.

Mitigation: Pull out a pistol in crouched or standing position before going prone to have a pistol equipped in prone position.

Steps to reproduce? LOL

1. Play DayZ

I had the idea that once you join a server, you must only use that server until your character dies. Of course, I know this definitely not suitable for many reasons (servers down, friends on another server, etc.) and there's probably a better solution for it.