It’s possible, but I’ve been diagnosed multiple times by multiple psychiatrists who said there was no doubt in their mind. This also included a questionnaire to my parents that showed I had it as a child. It’s also been mentioned to me by coworkers or even commented on by strangers.
I do have a free floating anxiety and that was something the meds helped with.
There are a lot of different types of ADHD medication that work differently for different people. If stimulant medication overall is a no-go for you, but you still have the hallmark symptoms of ADHD, I would suggest asking your psychiatrist about a medication called Strattera.
I do have a free floating anxiety and that was something the meds helped with.