After 8-11 years Nepal is a totally different country. Especially Kathmandu. You wont believe how much crowded/dirty it is up here. I also came back to Nepal after many years, and I do not feel well going outside at all. Practically you gonna bump into others while walking down the street. Traffic is terrible. Your brain is wired up differently in US. Everything is clean and in order. Over here its a chaos. 

One of my friend few years back, came from Nepal and I asked him the same question about moving back to Nepal. He told me that he is not going back to Nepal for good. I ask him the reasons. He could not give me any reasonalbe explanation instead he told me to go there once and then decide. 

I am lucky that I have Canadian PR before I came back to Nepal and now I have an option. 

But believe me, you practically gonna suffocate here. Dust, traffic, people, houses, dirt, load shedding, lack of water, You name it, its here. 

Have you been living here like others, you might not feel it. But coming back from US, you gonna suffocate. Like I did. 

This is just my personal experience and might not apply to all. 

Jai Nepal.