Help me need advice

Help me how should I handle this. I have bad bo
And I fart not feeling it or realizing it. So my co workers giggle
Make faces and huddle up talking shit in a corner. I keep it moving but the situation now got worse because I 30 year old little kid he acts immature he Will make comments right in front
Of my face. Like you smell like nasty cheese
Or stop farting! Right to my face
What stung the most was him saying I'm not civilized
I'm civilized just cursed with a horrible unknown condition
How should I handle this situation
??