The area I measure is close to my body, not near the source cause that would be stupid.
I measure at several angles and positions.
My house has background rf EMFs below 5 mircrowatts per meter with no cellphone on in the house.
You are making it more complicated than it needs to be.
And tbh buying / using a device made by a Anti EMF Page/Company who sells EMF protection is everything but trustworthy.
You know bias, fake shops, gold audio cables, crystals etc.
Now: Have you done a proper blind test? What was your experiment setup? How often did you repeat it? And what does it mean
The fact you think having been a network engineer has much to do with the scientific method, does not bode well.
I've got a published paper with my name on it. It's about forecasting octopus reproduction using satellite data. Even despite that, I don't go around calling myself a proper scientist, because I appreciate the difficulties of proper experimental design and eliminating confounding variables and know that even "proper scientists" don't get it all correct on their first attempt any more than I as a software developer get bug-free code on my first attempt.
A good blind study would be a EMF isolated room (shielded mesh, etc), a assistant you don't see (no visual or accustic cue at all) and a procedure you can repeat.
You go out, the assitant sets up the experiment (which is recorded, somehow EMF free), either activates an active EMF (perhaps constant file transfer, radio antenna etc.), the person leaves the room (the source is hidden), you enter, you wait x minutes (probably more than one), you either say yes or no and leave.
If you are clearly above random and you can show this result, you would be a good candidate for proper research.
Your assumption that you proof your EMF sensibility by recording the messurement after is way to unprecise. You might hold your EMF device wrong, ignore values, might have some visual or accustic cues etc.
What device do you use to messure EMF? What range? 5G has a broad spectrum, your sector antennas might send while you messure because someone is doing something close by etc.