Laryngitis isn't very contagious. The most contagious period is when the affected person has a fever. Would be wierd if they both got laryngitis, all you'd be able to do is write and nod to eachother.

But if OP lives with mom, then she should know about the laryngitis by now.

When you still lived at home did your mom feel your forehead and check to see if you were well every day? Or, did you act like an adult and tell her you weren't feeling well. Parents aren't psychic. Unless OP is a toddler, there is no reason to assume mom would automatically figure it out or be ok with the silent treatment with no explanation.

It isn’t rude to communicate non-verbally when you can’t speak. OP’s mother is a bitch.

Chosha_FML yeah but if the mom doesn’t know then she thinks the OP is rude

Maybe my brain works in weird ways, but if someone who normally talks with me suddenly only replied with gestures like nodding and head-shaking, my first guess would be "Oh, seems like they can't talk today" instead of "Oh, they suddenly decided to be rude and childish for no reason!"

I totally read that as “edgy wedgie” lol

did you not see the post from the dad who complained about taking his kid to the dr for a weeping bleeding rash on his penis.. that's how it happens.