Not necessarily. Multiple people are being gang stalked in an area. Therefore, it could be someone else. Or multiple others who are the TIs. They will sensitize the towns they move into with everything they use against a TI.
To be a TI, several things need to happen. Fortunately for you, they try most of the same things on everyone except the amount of street stalkers and directed energy weapons. If you go to my about page of my Quora space (https://tiskillsnetwork.quora.com). I list a group and a post that explains gang stalking well. If most of those things happened to you. Then yes, you are being gang stalked. If not, lucky you and avoid narcissists at all costs, you can be put on the list for any reason at any time.
Also, one of the very first things they will do is have overly friendly strangers trying to get you to say or speak about controversial topics. If this hasn’t happened, maybe you are not targeted. Alternatively, if you are being approached with slander about someone, they are prepping you to be a gstalker or to start proxy stalking another person. In which case, your neighborhood is about to be taken over. Be careful.
Ultimately, if you believe you are a TI in the early stages. You should not be here asking questions. Get your one bag packed, break all ties ASAP, and disappear before they have recruited enough people to stalk you 24/7. That is, unless you want to ride out being a TI.