Is it normal for my gums to feel weird with Invisalign?

I’ve had Invisalign for couple days now and the trays don’t feel painful (had braces as a kid so maybe the hard part has already been done). I have spacing in my front teeth and sides, so when I take my tray out, the gum in between my teeth almost feels wrinkly and is like a purplish red. Almost like they’re shrinking but a weird feeling when my tongue pushes against my teeth

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