It is definitely not comfortable to feel like you have to always look offer your shoulder to see if there is someone following you. However, when you just look on the news today, you will see that there are so many different crazy things happening. A person does not want to feel paranoid, but it is very possible that there could be a crazy person following them. These people know that it is possible to buy a GPS tracker for car and to follow you. It is important to check your vehicle to see if you have one of these attached to it. If so, speak with the police.