Since last Monday (about a week now) I have experienced a change in my bowel movements. I usually tend to have clean bowels and at least 1-3 movements a day. In the last week, I have had very few bowel movements, that are thin bowels (usually feel like I need to more but can't), are black colored, and my gas has been very smelly (worse than before). I researched some of my symptoms and most websites say that I need to see someone ASAP. I am wondering if I need to or if I should just wait and see if my bowels go back to normal?