Help please

Hey ladies. I desperately need help. I have never had issues with any odor vaginally until i had my baby about a year ago. Now nothing is working.

Here are the key things it smells kind of like onions & sweat. I shower daily, i clean thoroughly, change with clean underwear daily. I have seen 3 different doctors i have been testing for all stds- all negative, i have been tested for bacterial vaginosis- negative at all three offices. I have been tested for yeast - first time it came back positive. Second and third it came back negative. I have done nystatin power & cream. I have done steroid cream, estrogen cream, oral medication for yeast. I have tried ph balancing washes & vaginal inserted medication for ph balance. I have lost 10 pounds & changed my diet. I have also swapped to cotton underwear. Tried not shaving the areas & shaving more frequently. Literally nothing is working. It’s affecting my sex life because I’m embarrassed & no one can figure out what’s going on.

I have seen two Gyn & my family doctor. I am seeing a dermatologist next but i need help in the meantime. This has been going on for months.

Please help. Have you ever had this ?

What did you do?