[teraflop]

The problem is that paranoia causes you to assign meanings and interpretations that aren't reasonable. We haven't seen any emails, only the OP's brief, vague description of them. And even if they do exist, there is a huge difference between sending a threatening email and tapping a phone.

In the Reddit thread I linked elsewhere, someone thought they had "objective evidence" of intruders and drones in their house, because they were seizing on tiny details -- a tape dispenser not where they remembered it, an airplane flying overhead, bumps and clicks on an audio recording -- and assigning them the worst possible interpretation.

Likewise, the fact that the OP is seeing events like "the phone company's tech support was slow to respond to my questions" as part of the conspiracy is a huge red flag.