Welcome to Flyertalk!
I'm sure many people on here are well over 100,000 miles for the last 12 months. I'm aware of some who are into 400,000 miles plus per year.
100k isn't that difficult or strenuous. I fly purely for leisure and don't consider myself a regular traveller by any means yet am planning on being at around 80,000 miles by the end of the year. An extra 20k on top of that wouldn't make my schedule demanding, unless it was on RJs shuttling from RIC-IAD all day long
You'll found a lot of consultants on here...then again nowadays saying you are a consultant is like saying 'I'm a business person!'...