Is it normal that people hold their hands on their nose around me?

And you haven't realised that the smell of garlic can still be coming out of your body the next day? Do you have no sense of smell yourself?

In my experience those garlicky foods can create smells that last well over a day.. So even if you do it at night perhaps they can smell it the next day... Usually when I smell it, I ask the person if they've ate garlic or onions, surely enough they have the day before. My theory is that after it goes in your body it seeps through the skin's pores/sweat

Of course you brush your teeth everyday. That was a stupid question on my part. It probably is paranoia. Sometimes the mind plays tricks on us. I remember a few years back I thought I was pregnant for a few months having all the symptoms, nausea, headaches, weight gain, no periods, etc. But I went to the doctor it turns out my I wanted to have a baby so much, even though I wasn't thinking about having a child at all, my mind and body created this "ghost baby". This isn't relatively similar to your story but all I'm saying I was embarrassed and ughhhh. And go to doctor