I was wondering if it is possible for someone to have a clinical obsession with higher education. For example, the person who has this disorder constantly talks to others about things such as college to the point where something seems very wrong. Does a disorder like this exist? Or can it be a form of another disorder? I'm asking because I'm writing a research paper on various obsessions and would like to gain some insight on the matter.
To my knowledge there are no such diagnosable disorders. Remember, disorders are only disorders when they significantly and negatively impact social and/or occupational functioning. So if a person only talks about special interests, this might impact social functioning but how significant is it? Does the participant have friends which support his interests? Does it matter to him? Does it negatively affect self-esteem, worth? Does it affect his occupational functioning? Probably not significant enough to be a full blown disorder.
I think something which might be of interest to you is Autism Spectrum Disorder. Many individuals who are high-functioning may become obsessed about a specific topic of interest. They might investigate the ins and outs of the given interest.
You might be able to relate what you mentioned to media addiction but that is not a DSM-V disorder. There is nevertheless research about it, especially along the internet media addiction lines.
Hope this helps give you some direction.