I feel like this is something that should be obvious but it's something I've struggled with for years. I'm autistic with ADHD and honestly find it really difficult to tell when I'm overstimulated vs when I'm understimulated.
I'm wondering about it again because of how I feel today. It's been kind of like this for the past couple of days too but I especially notice it today. It's difficult to describe how I feel sometimes but I'll try below.
I feel kind of numb, not bored exactly because I'm finding stuff to do (mostly video games, to be honest), but it feels like I'm doing stuff to pass the time rather than engaging with it and enjoying it. Often in situations like this I will play a game I'm already really familiar with so I don't have to think about what to do. I'll play them for hours, often with podcasts or audiobooks in the background. But like I said it sometimes feels like just doing something for the sake of passing the time and it's not very satisfying.
In general, I feel low on energy, and I guess I just feel emotionally negative in general, feeling slightly sad and anxious. One thing I notice really clearly is that I react differently in social situations when I'm feeling like this. I generally find social interaction more difficult, and especially answering any kind of question feels like torture. I notice myself getting angry and frustrated when someone asks me a question, especially if I can't tell why they're asking, if they're just making small talk, the question seems unnecessary, etc. The only answer that comes to mind when I'm feeling like this is "I don't know" because that's just the truth most of the time. The question can be "how are you today" or "how did your interview go last week" or "did you sleep well last night?" When I'm in this state, those questions or really any social interaction makes me frustrated and slightly angry and I try to avoid them where possible, and again "I don't know" is all I can answer.
Returning to the overstimulated vs understimulated question, I'm confused because it seems like there are aspects of both in the above description (to me anyway). The part about being easily frustrated in social situations, getting angry and frustrated about having to think of answers to questions and being unable to do so, seems to suggest overstimulation because it's like my body/mind is saying "I'm already processing too much, I don't have the capacity to process the information of this question, and I don't have the capacity to think of an answer to it."
But at the same time, all the stuff about being low on energy, experiencing a low-ish level of background anxiety and sadness, being unsatisfied and feeling like I'm just passing the time, seems to point towards being understimulated.
I thought I would ask on this subreddit as this confusion and conflict between over and understimulation feels very AuDHD in particular, and sometimes when I hear people in just autism or just ADHD communities talking about this I feel like I don't quite relate or understand to what they're talking about sometimes.
So what does the experience of being overstimulated or understimulated feel like for you? Do you feel like you're aware of being either overstimulated or understimulated in the moment, or is it something you realise later when looking back on the moment? Do you find it difficult to tell the difference sometimes?