About 99.99999% of "there's spyware on my phone" reports here turn out to be something else. As B. Diddy said, you're posting things about yourself that you don't want others to know. Or you think you'r alone with someone when you tell them something - but there's someone listening. Or something else.
If you're an important high-level government employee, it's possible, but then your IT people could clear it up. But most people aren't targets of spies or hackers. (And installing spyware on your phone, unless someone had the phone and you didn't see what they were doing, is close to impossible. [Which means that if someone asks to see your phone, tell them to use their own.])