Well, Jake, the first thing I'll say it that it's taken 20 some years to get where you are. I'm not sure you will be able to resolve all of it in a short time.
Meaning, I'd recommend that while you look for answers, you continue to focus on your studies. I'm confident you will end up resolving your concerns. You seem to be asking all the right questions, just prioritize and make sure your main focus remains on graduating college.
If you want to determine if you have an executive function issue, I would probably start with a nuerologist, perhaps one that works with learning disabilities. I don't remember having medical insurance or a lot of cash in college, could your parents help you with this?
If you can see a specialist you may want to check out your state or local gifted organization for recommendations. It might be helpful to look for a doctor who has some experience dealing with the little "nuances" that come with being gifted.
Concerning the present, school, let me ask: Do you do better on essay exams or multiple choice? Do you find that you think you are prepared for the test only to get it back and wonder how you got a much lower grade than expected?
Neato
