It's been 2.5 years for me and I am actually a lot calmer than I used to be because anger and stress feel like such a waste of precious time and emotion. I do still have daily headaches and am in treatment for them. Fortunately not everyone gets those, although I know of three people who were and are extremely active (like me) and deal with them too. I have minor memory issues. Fatigue, for me, does not come from overdoing it physically, but on a bad head day just having to think and work as a teacher can exhaust me.