You can tell if you are losing weight - when you can fit into smaller clothes.
I went to Target in Fultendale last night and found a pair of relax fit jeans size 42/32 and they fit great. My 2 other pair are sized 44/32 and 46/32.
That can tell you a change right there.
Now about the abdominal area. I gotta use my air rower more to slim the belly down. Then I can work on getting 2XL shirts instead of 3XL.