Hi, how risky is unprotected oral sex on me for hiv? also how risky is protected vaginal sex? my only symptoms are dizziness and mild headaches since day 4 after exposure each day until now (day 10)...are these symptoms of ars?

HIV Risks: Specific risks for behaviors: http://www.cdc.gov/hiv/risk/estimates/riskbehaviors.html You do not have AIDS after 10 days post exposure - it would take months to years to develop symptoms.

No risk, not ARS: Oral sex is safe sex in regard to HIV; there has never been a proved case of transmission mouth to penis. Properly used condoms are 100% protective for vaginal sex, if the condom doesn't break. ARS doesn't cause dizziness or headache, and cannot cause any symptoms at all sooner than 10-14 days after exposure. And HIV is rare in UK women. Your symptoms may be just anxiety. No HIV test needed.