There might be a connection in between nomadic behaviour and ADHD? (there is no harm in bringing medical information just incase, maybe scanned documents uploaded somewhere could be a good idea).

Also if you want to get married, buy land or become citizen somewhere you should have your birth certificate with an "apostille"... It is this stamp you can get from your government to verify these documents...

Additional authentication required for international acceptance of notarized documents including (but not limited to) adoption papers, affidavits, birth certificates, contracts, death certificates, deeds, diplomas and degrees, divorce decrees, incorporation papers, marriage certificates, patent applications, powers of attorney, and school transcripts.

Read more: http://www.businessdictionary.com/definition/apostille.html