Possibility of HIV and other STDs from a single exposure?

Dear Ask The Doctor: I am an engineering student from india. On 7th May i had sex with woman whom i met in disco. i used condom but it get tored in between the intercourse. It was a minute contact just for few seconds after that i discontinued. After a few days i noticed a red patch on my penis head and the tip of penis seems like swollen lips, i thought that it might be due to tight condom or it get hurt during sex. After a months a had dairreah which lasted for a day. After 20 days of this incident i started feeling feverish but the body temp remained between 98.5 to 99. Few days after i had mouth full canker sores and stomach full of gases.Then i visited to general physician but i did'nt disclosed him about my red swollen penis. He diagnosed it as F.U.O and prescribed cefixime 400mg for three days and it worked and i got well for few days. But again this feverish symptoms started with headache and congested nose in the morning.There is no swollen lymph nodes any where in the body.But sometimes i experience neck stiffness and itching of whole body which causes red rashes for few minutes. Again i visited the doctor and he prescribed ciprofloxcin 500mg for three days. Now its August and i am not feeling well. Red patch and swollen tip of penis is still there. Now i have feverish feeling, stiff neck oral thrush and ulcers My question are: 1. Are these symptoms related to ARS or HIV? 2. when to get tested for HIV and what test? 3. What about my red swollen penis as i have heard that HIV infection has no symptoms on genital organs? 4. Can i have any STD along with HIV from the same single exposure? 5. What are my chances of getting infected? Sir please answer to my Question as i have written too many times and you have not responded. I am really not feeling well. I am a bright student and i don't want to die like this. Should I speak to my parents about this incident or its too early. I am really sucked please help me.............

Dear Anup: Getting tested before 3 months have passed may result in an unclear test result, as the infected person may not yet have developed antibodies to HIV. These 3 – 6 months are known as the 'window period'. Many people do not show symptoms after they first get infected with HIV. Others have a flu-like illness within several days to weeks after exposure to the virus. They complain of: fever, headache, tiredness, and swollen nodes in the neck. These symptoms usually disappear within a few weeks. After that, the person feels normal and has no symptoms. This asymptomatic phase may last for years. The development of the disease is different among individuals. This state may last from a few months to more than 10 years. Even though the person has no symptoms, is contagious and can pass HIV to others.  So, I recommend you to wait for at least 3 months after the last time you were at risk before taking the test. Some test centers may recommend testing again at 6 months, just to be extra sure, though in most cases this is not necessary. And also remember that HIV is not the only STD that you may get when you put yourself in a high risk situation having casual sex with a unknown STD status individual, I recommend you testing for other STDs as Syphilis, Chlamydia, gonorrhea, trichomonas, HPV.