I am a housewife overseas too. It was on the support and advice of my husband that I quit my job. I was a postdoc scientist before but my husband was all squeamish about the stuff I work with like Malaria parasite and TB
So anyway, unlike you, I am more lazy than raring to work and the lifestyle is suiting me fine. I keep myself busy like you do. I started running my own business who is great.
Your situation is more difficult as you have to move around from time to time which is not great. There must be some volunteer work you can do in short term basis like helping out in a old folk's home, animal shelter something like that. At least you will feel like you are contributing and helping somebody, time will be much better spent and you will feel more fulfilled in that way.