strong smell

i woke up and i smelt something that smelt like a fart was following me then i realized my vagina smelt very strong & i don’t know why. i’m just confused because my vagina doesn’t hurt/itch there’s just this strong odor. It smells the same from when i’m on the last days of my period & the blood is drying up & it gives off that awful smell. & when i shower the smell doesn’t go away. I change my underwear 3 times a day because the smell can build up so quickly & so strong. Also, I just got off my period last week so i’m not spotting. The thing is the smell is strong enough for me to smell through my pants & when i’m hanging with friends . & i’m just very confused. I just want to know if i should be concerned by the smell. this has been going on for 3 weeks now as of today