My Brain Is Gaslighting Me About My Own LimbThe real agony of feeling a part of you that isn't there.

From the show

Oh, god... really?

Understand the bizarre and painful phenomenon of phantom limb sensation. After an amputation, the brain's sensory map can get scrambled. It no longer receives signals from the missing limb, but the nerve connections still exist. This mismatch causes the brain to send out distress signals, creating the very real sensation of pain in a limb that's gone. It's a powerful example of the mind's confusing and sometimes cruel tricks.