[metaxy2]

I'm sorry that I can't directly help you (although I have IBS and a couple of other chronic diseases, so I can sympathize). But it makes me wonder if there's an opportunity for a startup, or even just a nonprofit online community, here. The targeted community being people with rare diseases in countries that are too small (or don't have the communications infrastructure) to offer good support. There's an especially big opportunity to do good in situations like this, where the disease is incredibly common overall, but apparently rare where the OP lives, so there is tons of information online but probably very little is written in Lithuanian or targeted to local needs.

Or maybe there's stuff like that out there already that we'll be able to share with gretar, in which case, even better!