Help needed on adult ADD

While I’ve not been formally diagnosed with anything (my wife has pointed this out because she works around kids that have it and believes I have something similar), I find that my concentration is all over the place. Feel like I’ve been this way for years and just dealt with it and got through just fine, but wonder if maybe she is onto something. Do you know of anyone like this and what they are doing to help themselves? I would rather not take a prescription medication, but rather see if a natural supplement exists or just even some sort of focus training to begin. Thanks for any help and I’ll be happy to answer questions. Thanks again.