Hi, I'm 16 and 3 days ago I suddenly started coughing and green phelegm was excreted. I have sore throat, cough and occasional runny nose. I,otherwise feel generally ok. Then I started noticing something behind my throat. Could be strep but can anyone clarify. This are the links for the images (warning it's pictures of the suspected pseudomembrane)
https://postimg.org/gallery/1jakthzgu/
Thanks for any help.