I have a very mild burning sensation when i pee that had been around a few days but isn't constant and i've been peeing more often, there is no smelling fluid seeping out so i don't think its an std, any ideas?

Hard to judge without more information. But mention of STDs and choosing STD topic tags suggests you are sexually active and possibly at risk, right? If so, see a doctor for exam and testing. STDs usually don't cause burning urination without discharge, but it's possible. Better safe than sorry! Don't just go to a lab: you need to be examined and have in-office testing in addition to lab tests.

You might have a simple UTI, Pl see your doc and get a urine test. In the meantime drink plenty of water. If you have not had an exposure it is not an STI. Good luck