Another Hole in my Belt

I had to drill another hole in my belt (smaller) because the belt was no longer tight enough to hold up my pants, even without a gun on it.  Not weight loss; I am having trouble getting and staying below 205 pounds.  (For someone 5' 11", this is not wonderful, but better.)  I have been having lower back pain, so I started sit-ups to alleviate that pain and the waist is shrinking.