I suppose I maintain my weird interests because they physically make me feel good. Whether it's foreign languages, international politics, cars, classical music, working on my constructed language, writing essays, or tutoring students at my university, each activity has its own distinct feeling, level of satisfaction, and manner in which satisfaction is achieved. My problem is that when I get excited about these things, I get that really intense fluttery feeling all throughout my body and it often leads to either hand flapping or weird muscle twitches which are very embarrassing in public, so I have to avoid sharing a lot of my passions with others unfortunately. 
_________________
Your Aspie score: 127 of 200
Your neurotypical (non-autistic) score: 79 of 200
You are very likely an Aspie