I am a medical doctor, for one. Due to conditions back home, I've worked often with injuries, mutations, and a few plagues. I've also had to work in psychology and neuroscience a few times, but I have no such degrees in that. I only worked in those on the basic levels out of necessity.

Also, it's important to note that I'm a Weapon and my ability seems to be healing at the cost of my own energy. It's completely imperfect, but my Meister and I have been working on it.