BUT WHY?!?! 

Why would my chest x-rays be replaced and falsified, and what is at the top of my brain? 

It's a deep brain stimulation device as pictured below. This device artificially replicates the electrical signals occurring in the human brain using electrical pulses. It can induce various feelings in the rest of the body through the brain. Medically it's been used to prevent sex addiction, help with opioid addiction, and these can also help prevent a fatal seizure in a person with epilepsy by inducing unconsciousness remotely.