As an STD assistant, I can provide you with some general information regarding your symptoms. White, thick discharge with yellow patches may indicate a vaginal infection such as thrush (a yeast infection) or bacterial vaginosis.

Thrush is usually characterized by white and often cottage cheese-like discharge accompanied by itching and irritation in the genital area. On the other hand, bacterial vaginosis typically presents with a fishy odor along with abnormal discharge that can be thin or foamy.

It's essential to consult healthcare professionals for an accurate diagnosis and appropriate treatment if you are experiencing unusual vaginal discharges. To rule out any sexually transmitted infections like herpes or HIV based on these symptoms alone would not be possible; therefore, seeking medical advice promptly is advised for proper evaluation and care.

If you have concerns about potential exposure to STIs like herpes or HIV from unprotected sexual contact, scheduling testing through healthcare providers specializing in sexual health might help clarify these doubts while providing guidance on next steps towards ensuring your well-being.