Can someone fact check me? (Patreon)

1: I knew a guy who had Tourretes (or claimed to) and the way i remember him describing it was that he could excercise a bit of control over what he did and when, but had to have some kind of outburst.

I'm also aware that he also had ADHD and speaking out of turn or blurting things might be more a symptom that, in which case, i would have to modify the Natalie's self-diagnosis.

I don't want to misrepresent a group or a condition that I know nothing about, so correct me if I'm wrong.

2: I vaguely remember reading a scientific article about light having some kind of bleed-through between energy and mass, where it would do...something spontaneously, at a quantum level.

Is there some effect like that where you could measure the amount of light in a box by measuring this spontaneous effect of photons on spacetime, and if so where can I get a better formula than E=MC? It's obviously not the right one.