Bumps in my throat, could it be laryngitis, an std or throat cancer?

Hello I am a 20 year old female. I have the same sexual partner for 4 years and an ENT doctor looked through with an endoscopy and said it was reflux laryngitis. It has been 1 month since I have noticed it & it has not left. It feels like bumps & looks like the same size, never grew. But I feel stuff caught in the back as well when I swallow but it does not hurt. I have tested for gonorrhea and chlamydia & waiting for results back. I have a picture attached. Could it be laryngitis, an std or throat cancer? Please help.

throat-cancer