Sinus Medication Solution

I apologize to begin with for the disgusting nature of this question.
I often have sinus issues, allergies, etc. To get relief when it gets really bad
I kind of do something at the back of my throat like I’m trying to hock up a loogie, except
I don’t, the vibration gives me relief from the itchy feeling at the top of my mouth and back of my
throat.
Ok, so anyway, sometimes when I do this a freakish little white ball about the size of a small pea comes out of the little holes at the top back of my mouth. It smells FREAKING nasty like plaque and it slightly firm slightly squishy.
What the hell is this???? Should I be worried?
Am I a freak?

I know lymph nodes are a bad sign when they are hard and fixed in place, but for some reason my lymph nodes are usually like that. I have two under each ear that was hard and fixed but are not swollen and my doctor said they’re fine. I once had one behind my right ear a couple years ago that are hard and fixed but it went away. Now 3 days ago I got another hard and firm lymph node behind my left ear.
I was scared it was cancer but is there a chance that maybe my lymph nodes are just that way? Since I have NEVER felt a pea-sized movable lymph node on me the way its been described and all my hard and fixed swollen lymph nodes from the past have gone back to normal.
Anyways, 3 days after I felt that node behind my ear, I began feeling pressure in my head, a clogged nose (that stays clogged but I cant blow out any mucus), and slight pain behind my neck. Does this sound like a sinus infection?
Note: Dont tell me to c a doc, i have an appointment on tuesday. I just wnat your opinions.