I am 23 yrs old, 5' 1 and a little over weight, fairly healthy my whole life, I have all four of my wisdom teeth coming in right now and i have had an infection in my very back molar on the left bottom side for almost three years, last night my tooth in the back was bothering me but not too bad, it felt like there might have been some fluid building up under the tooth, I woke up this morning and on the left side of my mouth it is a bit swollen and firm feeling and when i move my mouth a certain way i can feel the firmness even more...im a little concerned about this and would like to know what is going on