Hi thanks for your question.
From the symptoms you have described it looks like your having pharyngitis
(infection of throat) and tonsilitis
that is infection of tonsil.The swelling behind your ear could be an enlarged lymh node called post auricular lymhadenopathy.This enlarged lymph node
along with swollen face could be due to pharyngitis and tonsilitis.
The second part of your problem that is bleeding with stool could be due to anal fissure
or a pile mass and pain abdomen could be part same disease.
I would suggest you to consult a nearby physician specialist and get yourself investigated for these symptom comples and management of your symptoms can be done accordingly.
Hope this answers your question.