Treadmill for over half an hour

I did it!  I am finally motivated to do more exercise.  I had a rough night so I went to exercise.  I didn't realize how beneficial exercise is to a person with OCD, such as myself.  I knew but not like this.  I love to walk and I will continue to walk again.  So I walked on the treadmill for more than half an hour and I feel much lighter even though I didn't do a whole lot of vigorous exercise today.  I plan to walk, just "move a muscle" tomorrow too.