Why does blowing my nose make me want to pee?

Why does blowing my nose make me want to pee?

When I wake up in the morning, before I get out of bed, I often have to blow my nose. Whenever I do, I get the urge to pee, so I get out of bed, go into the bathroom, and empty my full bladder.

Does that happen to anyone else?

I know it's physically impossible to sneeze and pee at the same time. Maybe this is similar?

Why does blowing my nose make me want to pee?
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