please help !!

okay, so i dont think this looks normal. i recently had a uti and got treatment, it turned my pee orange. (which is normal while on that medicine) and that was almost 2 weeks ago. i've been having this yellow discharge and i don't understand. i've been super stressed lately and i have been checked for stis/stds, all came back negative. i've obly had one sexual partner and we are still together and i know hea not cheating. i read online it could be Bacterial Vaginosis (?) 
how do i get tested for that? what should i do? 
has anyone experienced this discharge? what was it? 

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