There are unethical people who claim you have a problem and then magically, they are the only ones who can fix it. And of course, charge you money for it. When reputable companies like Malwarebytes and Kaspersky can't find any rootkits but this completely no name joke spydll company can, it's safe to disregard anything they say. There are lots of companies like this on the internet, and let me guess, you found this company cos it had a "pop up" on your computer while you were visiting some random website. No ethical antivirus company does that, unless you already previous have that program installed and you're paying them a monthly subscription to protect your computer. And even then, there would only be a small notification in the bottom right hand corner of your screen and depending how you set the program up, it would either automatically take care of it or ask you what you wanted the computer to do with it.
Again, there is NO serious ethical professional antivirus company which will put a giant pop up on your computer. ALL of those can safely be ignored.
Anyway sweetie, I am so very sorry, that's a horrible diagnosis for anyone to have. You however are being very very brave and it sounds like you're actually doing super, with only a few symptoms and handled pretty well with meds! But, and gently now, it does sound like some form of schizophrenia to me. A mental health issue is more plausible then someone starring in their own Truman Show with Jim Carrey
Stay well and keep posting about this if it makes you feel better and not be afraid to tell people here what you need. Maybe you want people to stop telling you that they think it's schizophrenia and would rather people just say that they don't think X is a gangstalking because Y? It's up to you.