Perhaps a bit off topic regarding the actual situation of OP and anyone who could be practicipating in this section of the forum.
But back in college, we have a person who seemed to be completely normal, but one time we discovered (while he was traveling abroad) that he suffers from squizophrenia.
While he was in that travel, he started to claim the police was after him and they had put some localizing device in his belongings.
His situation got so bad that he had to be deported from the United States because his erratic behavior around others.

I am not saying this is the same case of that person we met in college, but I cannot personally allow the similarities to pass by me and not recall what that person had to go through during what was supposed to be a relaxing vacation travel in the USA with his family.