Hi there. Medication change can daunting. The reason why your psychiatrist might have increased your medication would be because of the city change itself. New city means new stressors and that means the change was needed as the previous dosage won't work that efficiently anymore. 5mg change is not much, do nothing to worry about in that sense.
Next Steps
If you could have mentioned your psychiatric issue it would have been easier to suggest. None the less, incase you are experiencing anxiety, I would suggest not to take medication and rather go for psychotherapy for the same. Usually we end up going to the psychiatrist instead of a therapist first.
Health Tips
If you have doubts, see another psychiatrist. A second opinion is always helpful.