I know I've said this before, but it's worth saying again. The one thing I did learn from my cancer diagnosis is to never ignore your body's messages.
Had I not paid attention to the blood in my urine, and passed it off as "nothing really" they would have never found my cancer. My cancer happens to be a very aggressive, fast growing cancer, that appeared earlier this year. We were lucky to catch it relatively early on, but even so, the cancer did spread making it a bit more difficult to resolve.
So listen to your body's messages. Even small things that just don't seem right to you should be checked out by a medical professional. It's your life. Take care of it.