Dear sir from 4 days I have been suffering of sore throat,cough,weakness.i didn't drink anything cold.i have back pain.i don't focus on my study.i think my immunity system is weakened.All these are the symptoms of Hiv.i haven't done sex yet.no transfusion of blood has occurred.then why is it happening?.some month ago one cat made some scratch.that did not heal earlier.now it is healed.Is it related to my condition now?.for the last month my sleeping is very irregular..I used to study upto 3.30am get up at 7.45.,attend college at 8.00.i sleep very little at night but after college I sleep for 2-3 hours.whatever my condition is now ,is it because of this pattern of life style?