I've have some small bumps near the labia wall of my area I don't think that they are std or anything like that related. I've only had one partner. They look like bumps with fluid in them.

Bumps with fluid in them,  and not being able to see them, would be lesions and that would mean an std my dear. Could be your one and only partner has an std. Better get checked out, both of you !

Is it painful?

You do not have any sex until you get a doctor, or health center to exam. Just one partner does not mean you can not get a STD. Or of course another type of infection from other sources.