I'm an Erasmus exchange student currently located in Madrid. I'm from Turkey so, to come here, I got a 6-month Spanish National Visa. For some volunteer work, I will travel to Estonia (with stopover in Germany) and back.
My question is whether, at any point, will my passport be stamped? I currently have the entry stamp into Spain.
I'm asking because Erasmus officials back home don't like it when we travel and I don't want it to become an issue.