I am worried for the last 33 days, on 27/jun I had a very brief 5-7 min oral sex on a prostitute. I regained control over myself and thereafter pulled away. Since then I have been having tingling i.e from the very next day allover my body, the same subsides at night and recurrs every 3 to 4days. My HIV 1 & 2 test has been negative i.e on day 4 index value 0.19, day 21 index value 0.28, on day 33 index value 0.46. I am scared that since the index value is increasing on each occasion, this will surely cross 1 in the next 1 month, please guide on why the index value is increasing and what it means. Its now 5 weeks, am I in danger of hiv. Is tingling and burning skin on arms, itching on face symptom of hiv. please help.