steveseymor welcome aboard our cabin!
What you described sounds 100% normal and happens around the world every day. If you find that the same airline has many early returns to base - only then might you start to ask questions.
We all want our flight crew to do the safe thing and both of these were the safe thing. Further, with the first event, it might not have been the flight crew but the airport approach controller who asked them go around. For example, if a previous landing aircraft was not going to be clear of the runway before decision moment - then they would tell the next aircraft to go around. Or, they might have been running a check on the runway of some foreign object that was seen and needed to be cleared away to allow a safe landing for you.
Do read our FAQ at the top of the page and look around, it's nice to have someone contribute from the Orient.
