I think a psych eval would be a great idea if you've got the money for it. I've done multiple, for various things.

If you can afford a general evaluation that includes an IQ test, I personally think you should go for that, rather than doing a small evaluation and just filling out a bunch of questionnaires. Even though I personally don't think an overall IQ score can accurately describe one's intelligence (because intelligence really is multifaceted and not everyone is a good test taker), I do think IQ is useful in describing your overall level of functioning at that moment and identifying areas in your life where you struggle. Heck, certain parts of IQ tests themselves can even assist in identifying Parkinson's, "clinical clumsiness," or things you wouldn't expect they could identify. Not saying you have Parkinson's of course, but my IQ test included fine motor movements, impulsivity checks (for ADHD), etc..