Hi can you please help me, I went to the hospital yesterday I have something dangling from uvula, it was longer that usual, looks like clear fluid, when I touch it with my tongue it’s like tissue, the dr said it was collection of salvia gland?

Should I get a second opinion?
It’s making me very anxious. I can flatten it with my tongue and move it around.
It’s annoying sensation in my throat.
No fever, I did have a really bad cough a few weeks ago. Flu. Ect..
they said gargle salt water