Yes and No for me, in terms of if studying psychology is a special interest. I mean, I am obsessed with psychological issues, but not in wanting to study or learn most of that through books and other sources, as that can at times be not just listing facts but generalizing, too, and I rarely talk of such issues in a technical or medical way but in a way most could understand. I learn mostly in more practical ways through meticulous study of persons, their actions, inactions, spoken words and behaviors, and by watching their interactions with others, and I did so since age five or so as a protective measure and to learn during all my shyer and introspective years.
However, I do research mental health conditions from time to time too, and I studied the DSM's extensively for most mental health conditions, as I helped numerous persons get disability benefits when they could not work, but I think most of my psychological knowledge comes through analysis of people more naturally, and seeing them as individuals who should be judged based on more personal inspection, digging deeper there and not assuming things on the surface or that they fit into some textbook case or theory, and putting two and two together after being comprehensive and open minded in other ways too, after comparing that to the other basic knowledge I already knew there.
If anything, persons can likely become annoyed at me because I want to analyze all the mentioned too much, and as I want to always figure others out, their intent, and to assist them, if any need, and to see if they are able to be compatible with me or others or not, or to at least possess one or more character traits important to me. I rarely will assume what a person says or shows on the surface to be true, because of a lack of trust with others growing up, but I can usually tell easily if persons mostly will bring mostly good, neutral or bad to the table, or I can determine much of their character, by analyzing what they have done themselves and how they others, by looking at their communications, or by their actions and inactions over time--not just assuming things by their words.
I think I am an atypical case here where I was not only around lots of persons with mental health issues, but whereby I could make sense of things more by studying their postures, expressions and mannerisms, and comparing that to their words spoken, actions, inactions and behaviors to see if something did not match there. And then if things did not match, I had to either have a bigger sample size of information from them there, or I would have to take an educated guess what could be true or not from what I saw and/or heard, taking into account my numerous past experiences where I was right more times than not, after future encounters showed that to be the case.
The best psychologists and psychiatrists I feel will have that sixth sense and they will be good at analysis and details, besides having book psychology knowledge. They will be obsessed with finding answers and healing others, more so than obsessed with money, fame or power. They will usually see each and every word, action and inaction as potentially very important in figuring out things, looking for any consistencies and inconsistencies there, but being able to word things in constructive ways too when wrongs are occurring, and not just support, listen or say things patients want to here. I will not be always right in what I say, but those into psychology who can explain their opinions well and seem balanced and open minded, without any bias, as not all cases will be the same, for even those with the same conditions, so I am more trusting of those type of thorough professionals.