Considering ADHD Testing as an Adult (30s)

Been told by several people that I might have ADHD, but I am wary of pathologizing anything, as they are not doctors... but someone who was medically diagnosed with it said during a casual chat mentioned that I showed a lot of signs / symptoms that she also experienced (ex: starting lots of hobbies, feeling overwhelmed by stimuli, troubles with focus affecting work, not good at remembering verbal instructions, impatience, hasty actions and impulse decisions, losing my train of thought in a conversation as in "oh, what were we talking about again, I forgot" is a catchphrase of mine at this point).

She is not the first to make comments or observations like this.

I also have been diagnosed with depression and have been taking meds for it for several years now (brintellix) and my doctor says that it doesn't affect memory or focus. She also said that signs of ADHD must manifest in childhood.

I was a very talkative child who was too chatty which annoyed teachers to no end (kept changing my seat but couldn't shut me up), but I was great at tests and memorization (or so I've been told). During puberty, I became more of quiet daydreaming bookworm due to self-conciousness and poor social skills, so instead of being chatty, I hid pocket books under my textbooks or daydreamed while staring out the window. My grades were still pretty good but I vividly remember that much of my high school life was spent staring out the window or furtively reading novels.

College was challenging but I pulled through, and I only sent one paper late during my whole 4 year stay, but I ALWAYS did it at the last minute. It's like the deadline is the only thing that motivates me to act. Though... feel like this is a common behavior among students so I hesitate to bring it up as an ADHD symptom.

In other words, I am pretty functional, though my inattentiveness to details and lack of focus on things that are very important but fail to interest me are beginning to affect my work, particularly when admin tasks are involved. I'm good at presentations and thinking of solutions on the fly, improvising, but I'm terrible when paperwork or organizing papers/files/permits is involved.

Sometimes I fear I'm just lazy. Other people can do it even if they don't want to but I can't. And I try. I'm trying to seek out other jobs that use my strengths more than my weaknesses.

But I wonder, if I do actually have ADHD and get it treated, I could do so much more. I feel like such an underacheiver.

I don't want to use ADHD as an excuse, I just want to know how I can be better, and whether or not ADHD is part of the issue.

Note: I wrote this post while I was supposed to be doing something else... :')