From the article posted previously:
Quote:
Developmental and psychiatric conditions
Hikikomori is similar to the social withdrawal exhibited by some people with autism spectrum disorder. This has led some psychiatrists to suggest that hikikomori may be affected by autism spectrum disorder and other disorders that affect social integration, but that their disorders are altered from their typical Western presentation because of Japanese sociocultural pressures.[36] Suwa and Hara (2007) discovered that 5 of 27 cases of hikikomori had a high-functioning pervasive developmental disorder (HPDD), and 12 more had other disorders or mental diseases (6 cases of personality disorders, 3 cases of obsessive-compulsive disorder, 2 cases of depression, 1 case of slight intellectual impairment); 10 out of 27 had primary hikikomori. The researchers used a vignette to illustrate the difference between primary hikikomori (without any obvious mental disorder) and hikikomori with HPDD or other disorder.[37] Alan Teo and colleagues conducted detailed diagnostic evaluations of 22 individuals with hikikomori and found that while the majority of cases fulfilled criteria for multiple psychiatric conditions, about 1 in 5 cases were primary hikikomori.[38] To date, however, hikikomori is not included in the DSM-5 (The Diagnostic and Statistical Manual of Mental Disorders), due to insufficient data.[39]
I'm guessing that the OP isn't actually a Hikikomorii/is not from Japan and is in fact just experiencing social withdrawal, typical of ASD's.