My bottom teeth have been, not hurting,  but have been feeling kind of uncomfortable, like they are being pushed forward. I happened to look at the back of my bottom teeth and saw this yellowish brown stuff. I tried brushing it off but it will not come off. What is it? Could it be linked with the pressure that I am feeling on my bottome teeth?
Thanks for your query, I have gone through your query. The pressure feeling on the teeth, gums and yellow discharge(Pus) is because of the abscess or collection of pus secondary to teeth or gum infection. Consult an oral physician and get it evaluated. If I am your treating doctor, I would have suggested you to take radiographs like RVG or IOP AR to rule out gum and teeth infection. If it is a gum or teeth infection I would have prescribed a course of antibiotics like amoxicillin 500\u00a0mg and metronidazole 400\u00a0mg TID for 5 days (if you are not allergic). Then I would have suggested going for scaling and root planing for gum infection. RCT or extraction if it is a tooth infection. I hope my answer will help you, take care.