Generally, sub count fluctuations are normal. While we remove spam subscribers regularly from your channel, it's likely folks subscribing and unsubscribing as well. Here's more info: https://goo.gl/6B1Eb6 . Hope this helps clarify.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more