POTENTIALLY DUMB QUESTION ALERT, but I'm here for a reason.
I have SEVERE ADHD which a lot of the time feels like I'm bordering on autism when it comes to specific interactions. I've developed a habit of just, throwing out the phrase "oh, I'm just hella autistic" as a reason if I do something weird in a social interaction, like get overly passionate about something or get awkward or whatever.
I've never been formally diagnosed with autism, but I've had therapists suggest I may be autistic. Idk why I keep fucking saying that I'm "autistic" I feel like it's just easier to both say and explain as opposed to "oh I'm neurodivergent" or "Oh im just mentally ill :3" Its also cus I assume most people know what Autism looks like and thus I dont have to explain as much, as most people dont know what severe ADHD looks like and I assume most dont even take ADHD that seriously.
Is that something to just throw around like that?? 'Cause I have friends who actually are autistic, and after hyperfixating on all kinds of mental health research, I don't exactly fit the bar for autism, I'm wayyyyy too outgoing and sociable(?) among other things. My symptoms fit more under severe ADHD or potentially even AuADHD. Which I also have no idea how I can go about getting a diagnosis.
You could just say you have ADHD since you actually know you have it. But as far as autism goes it's complex and the internet fucking sucks as a diagnostic resource so you'll probably have to ask a doctor or other autistic people. It seems like all of the "blog" sites that list autism criteria are geared toward children and right now I wouldn't fit most of them and for the rest I wouldn't have thought I fit if I hadn't had people pointing out how socially awkward I am, but in early childhood it was way more obvious. Also being outgoing and sociable doesn't rule it out. Although I also think it's best not to focus on or overthink labels in general unless you really need it to get some sort of support or to help people understand you better as an alternative to getting rejected from life.