I Have Had The Sensation Of Leaking Urine For A

I have had the sensation of leaking urine for a little over a week now. When I check I generally don't have any leakage, but it feels like I am. The urethra at the end is always burning a little. I have had my urine checked twice and it is always negative for UTI or STD. I've also had some dull headaches at times that come and go, but nothing intolerable. I've been on an antibiotic but still have the symptoms