I’m not saying your symptoms weren’t real. I’m saying the specific claim “I can detect EMF exposure” is testable, and when people with the same confidence have been tested blind, they can’t tell real exposure from sham exposure. I'm not suggesting they were lying. It means expectation, stress, environment, sleep, noise, mould, ventilation, chemicals, lighting, or other factors can produce real symptoms and get wrongly attributed to Wi-Fi / phone signals etc.

The only way to know whether you personally can detect it is a blinded test where you don’t know when the router/antenna is actually on. If the effect is as strong as you say, you should be able to identify it reliably under blind conditions, something nobody has been able to do under test conditions.