Am I losing weight?

Hi I'm new to this community and I have a quick question.

I've noticed that my stomach been feeling a little tighter than usual and I'm not sure if its due to exercising and dieting. I've been doing only cardio such as treadmill, bike, and elliptical for a month. And I started my diet last week. So my real question is, when you do lose weight, your body somewhat feels..tight?

Thank you!

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