No idea if I got ADHD or not but these memes are very relatable...
I do both: I worry about every detail and try to account and plan for everything which all usually falls apart because it feels like too many things and then I'm left with improvising everything on the last moment.
Now, I can't speak as to the memes you've seen, but I can say, could be worth talking to your healthcare professional about it. But I'd try not to worry about it much until then (especially if it's only memes making you think this), because a lot of the things us ADHDers do are actually quite "normal". Happens with a number of mental disorders. A good example would be how being a neat freak or worried about germs doesn't mean you have OCD. The issue those of us with ADHD have is that we do these "normal" things so excessively that it usually causes us serious complications with life. (Should also add, not everything we do is "normal", but for the most part, yeah it is.)