It could be strep, mono or a nuraber of other viruses including but not limited to: influenza, measles (doubtful), adenovirus, certain strains of the common cold, or primary HIV. It could also be a tonsillolith that has become infected. This would probably render you with a terribly smelly breath. see: [link]http://en.wikipedia.org/wiki/Tonsollith[/link]
If it is a virus you're more likely to be experiencing cough, coryza ([link]http://en.wikipedia.org/wiki/Coryza[/link]) and/or diarrhea.
It sounRAB like your cervical lymph nodes are inflamed, which is a red flag for Infectious mononucleosis. Mono (as is termed in North America) is generally contracted through kissing, sharing drinks, or other activities that involve exchange of saliva (advertently or inadvertently). Though cervical lymphadenopathy (and associated pain) can also occur in and is a common symptom of strep, the likelihood of getting strep past about the age of 15 is decreased, and, strangely enough, the chances of getting mono before the age of about 12 are relatively small. The highest rate of incidence for mono occurs in older children and young adults, more often in less developed countries. I do not know the epidemiology of strep or mono in Afghanistan, though. A tonsillolith that has caused an infection could also be responsible.
However, mono's onset is rather insidious, whereas the onset of strep is acute. the incubation period of mono is some 3-4 to about 7 weeks; symptoms generally persist for about 2 to 3 weeks. Though the associated fatigue is often prolonged if not perpetual. The incubation period for strep is 1 to 3 days with a rapid onset.
Whatever you have it does not look like it has advanced much yet, though the photo is fuzzy. Whatever you have is possibly contagious, so please be careful. The best thing you can do is visit a doctor, as they have the facilities to determine what the issue is. Here we cannot do much but speculate.
Best,
S
