[@Chicken] So I've been hashing and rehashing character concepts for a little while, and for the past few days I've been chipping away at the one I want to go with. I did have confusion regarding certain proficiencies, however, specifically the medical ones.

Expertise:
Anatomy
Medicine

Skills:
Healing
Herbalism

Now I'm just a bit confused here as to how these proficiencies are technically unique from one another. There's just a great deal of overlap between all four. It makes me wonder, if someone proficient in anatomy, medicine, and herbalism, is useless if he isn't proficient in healing. Alternatively, is someone with the healing proficiency unable to make use of that skill without an understanding of herbalism or medicine or anatomy?