Experiencing Sinusitis After A Tooth Extraction

Hello,
I am a 20 year old female who has smoked for a couple of years but just recently (the last 3 days) I have been experiencing something that has never happened before to me. I feel the need to burp and when I try like every other burp, it doesn't come out... All the time. There has been a few times that when I do I burp really little or I burp big, like loud. The other times when I'm forcing myself to burp it it feels as if it's stuck and won't come out. If I try harder I can feel something come up that's, I don't mean to sound disgusting but a loogie. It's king of thick and doesn't taste like anything. It feels like foam sometimes. I don't have pain anywhere and it doesn't hurt to burp. Although when forcing myself to burp it hurts very few times, perhaps with the amount of force I'm trying. Today it was bothering me really bad and so I just thought I would try and throw up. When I did it looked slimy and it had brown in it. Perhaps from food I ate before it. I was recently perscribed aderall to help in school and before I started taking it this never happened. I also take loratab 7.5 due to a tooth extraction done weeks ago that formed a dry socket. I get my wisdom teeth out 3 days with sedation. Will what's happening affect me getting my wisdom teeth out? Will they still be able to do it? Also a week or two ago when I got perscribed the medicine the doctor also perscribed me medicine for sinusitis that I haven't really taken at all. (I know I should have) the sinusitis problems have dissipated and now I'm left with this not painful feeling but very very bothersome feeling. Please Please help me :(