Is my odor from result of long lasting gum infection or something else?

To start with i have never really brushed my teeth since i was a kid, i was diagnosed with gingivitis when i was 12-11 year old
i didn't still brush my teeth after that because too much hassle
Well i'm currently 16 year old still having gum a infection i have lately only started brushing my teeth seriously and everyday.

When i was younger i used to eat lot of junk food like, instant noodles, kebab, and drink coffee,sugary drinks but i have changed my habits.

I don't know, my odor can fill up a house, classroom, auditorium, travel faraway, through doors.


I'm not paranoid i just did not care about my odor when i was younger but i knew that i had some kind of garbage smelling odor. When 10 people complained what is this bad smell whenever i'm in a classroom but i wasn't diagnosed with gingivitis at that time so i assume my odor has gotten worse gradually. I have checked to see if i have tonsils but i don't see any or maybe i'm not looking hard enough.

I'm aware that having gingivitis come with bad breath.
But i don't think my odor is simply just a bad breath.
I couldn't find information if ginvititis causes severe odor whatsoever. It's not my clothes, shampoo.

I have considered the possiblity of TMAU but none in my family or relatives that i know of smell.
Testing is not available in my country either.
I have had heard people say the odor smell sausages, crap or burning, dunno i don't myself know what i smell like
If i'm in a certain spot/place/building my odor kind of lingers around a while.If i got up and left my seat would people know where i sat? Hahah