Welcome to e health forum.
HIV is not transmitted via contact of skin with toilet surfaces, and other surfaces described in your history. For HIV to be transmitted, HIV contaminated fluid has to be directly deposited within body tissues.
PLEASE NOTE that HIV is transmitted by any activity where body fluids are exchanged, such as:
1. Unprotected vaginal, anal and oral sex
2. Inoculation of infected blood into the body - as in Intravenous drug users who share needles and syringes.
3. Poorly sterilized dental and medical equipment
4. Unhygienic tattooing and Unhygienic acupuncture - where needles are reused.
5. Poorly screened blood transfusions
6. HIV infected mother to child transmission
Remember, HIV is not transmitted by:
1. Hugging a person,
2. Dancing
3. Sharing food or drinks
4. Using a shower, bath, or bed used by an HIV person
5. Kissing (between people with no significant dental problems)
6. Sharing exercise equipment or
7. Bug bites
8. Contact of HIV infected fluids on intact skin.
In case, you think, that you have had a risk of HIV infection, then you might consult with your doctor, who can counsel you, and accordingly you can get screened for HIV infection.
I hope this helps.