Enemies are slow and predictable. Eat before going to your body so you have some health in the first place, and having a backup set of equipment would be ideal but not necessary.

Draw the enemy away from your tombstone, bait them into attacking to slow them for a moment, and sprint to your tombstone and loot it all. You'll receive a buff for 50 seconds that reduces damage taken by 75%, reduces stamina costs of running and jumping by 75%, heal for 10 health per second, and increase carry weight by 150. Use that buff to stay alive while you equip your gear, and then kill whatever killed you.