I've been having this smelly yellow greenish discharge for about 5months now. I haven't been to the doctor at all because I don't have any health insurance. I was wondering could someone tell me what it is. And do I need to go to the doctor for it!

Hun, we cannot legally or ethically diagnose you over the internet without a physical exam (which is impossible). You will have to go to a doctor or local health department. It sounds like it could be Bacterial Vaginosis, which would need antibiotics to get rid of it.

Is there a chance you could have an STD?

Drat. J_9 beat me to it.

Sounds like an infection to me.