I'd say I also need to understand why I started with photography. What made it fun to start with.
Here's a different view of what you're experiencing. (I'm no psychologist so this is just an idea -- feel free to tell me I'm a crackpot.)
What you're experiencing, based on what you've described, may be more a sense of grief than non-inspiration. Sounds like in Asia you had a rewarding feedback loop -- a sustained group of people who saw and liked your work. That system provides support and inspiration to go further and to keep at it. Having lost that you are now faced with starting over -- and it's hard to generate momentum. To put it in baseball terms, after you've played in a stadium full of spectators, knocking out fly balls by yourself doesn't seem very rewarding.
In a meaningful human relationship, we have everyday life, all that we do -- together, apart, it's just normal routine. The rewarding part of the human relationship is the intimacy, the simple moments of sharing. Equating that to photography, taking pictures is the everyday or so of simply getting out and doing it. Rewards come in the pleasure of good image -- and sharing it, knowing other people appreciate it as you do and value you and what you've done.
Your pondering of the "why" you take pictures is indicative of the human grief process. When we've lost something we eventually go back to thinking about how it started in the first place, how did we come to have such a thing that has now been lost. I think it's part of the starting over. Unconsciously, we're looking to recreate/regain what has been lost.
You may want to think about looking for community in your current setting. Get involved with people who take good pictures -- experience the sharing of their work. Maybe share some of your past work. You may find in that a reason to create anew.
Overall I wouldn't worry much about it. If you're someone who really enjoys photography, eventually you'll be doing it again with enthusiasm.
Oh and you may want to think about one thing I tell people who think you need to travel to do great photograpy:
Your "exotic" location is someone else's boring home. Move along folks, nothing to see here.