How long will I stay bloated for? Cause I can fit into any of my jeans?

I got my period 2 days or less ago and today was my 3rd day I don't weight much either I may have only gained 1 pound or so but I all my jeans are so tight and I don't even gain much...

this bloating frustraits me like anything...
How long will I stay bloated for? Cause I can fit into any of my jeans?
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