For the past year or so I have had frequent feel to urinate and sometimes after urinating I do not feel like I'm done even though there is no more urine for the time being and time to time I also feel tired with out any noticable causes. I went to the doctors approx three months ago. They did not diagnose me with anything and I also had my blood drawn to test for diabetes (grandmother has diabetes) and anything else. Nothing came up from the test.
When I am at work, I usually don't notice the first symptom.
What are some diagnosis that it may be?