Hi Atan!
You should be posting HIV concerns in the HIV forum but let me quickly answer your question for the sake of helping.
Test kits are not available in the market here in the Philippines. I suggest that you test at the closest Social Hygiene clinic. Testing is free. It is by law that the result is to be kept confidential. You may use an alias if you do not want to tell your real name.
Send me a PM. I can recommend nearby clinics.
HIV tests can be ordered and sent confidentially online