Deanne wrote:
I think part of my issue comes from a combination of ASD+ADHD as they relate to special interests and executive functioning (or the lack of it).
This is the key thing. If you change jobs you will struggle to concentrate in the new one as well, and it could be a job that's much worse in terms of pay and conditions.
I would invest as much time and effort as you can spare into investigating ADHD coping strategies before you consider changing jobs. It sounds like your job is a very good one, and learning something different could be very hard with ADHD too.
Also worth noting that the vast majority of jobs simply pay the bills. They're not automatically fun or interesting. The ones that ARE fun and interesting are generally exceedingly poorly paid because the employers know they can get away with paying peanuts.