Yes, I speak German... I've been here for ca. 9 year, so it would have been embarassing not to speak the language LOL.
I wrote my blog in 2 languages in the past and made it in 2 columns, but since my baby is getting bigger and more active... writing in 2 languages is rather time consuming, that's why I didn't do it again lately.
And writing in English is simply the better option because we have international audience here. :-D
I would certainly write in German again later when the topic of my article is somehow particularly relevant for Germans. ;-)
By the way regarding stomach problem, after leaving Indonesia rather long... most Indonesians would normally also get the same problem with street food or food from warung, at least for the first week.
So I would consider it rather normal ^_^
At least when one doesn't have any particular medical condition which requires a special caution toward food.