Why when i use a bluetooth headset i get dizzy and blur everytime. but when i turn off bluetooth and use wire, i feel normal. what is the cause?

Defective headset?: Bluetooth is a weak signal that should not cause any effects on the body. Try using a different Bluetooth headset. If you still feel dizzy, I would try a blind test. Have someone play music with a Bluetooth speaker and then with the same speaker wired, while you close your eyes. Try to guess 10 times which one is which. It may be that anxiety about wireless technology is getting the best of you.