Blister-like spot on gums, after temp dental crowns. Something to expect or should I be calling the dentist? (Photo)

I'm in the process of getting dental crowns on my front 8 teeth. I had my temporaries placed 5 days ago and my gums are still extreamly sore. I know some of this is to be expected so I wasn't concerned until I noticed a blister-like spot, between my two front teeth. Does this happen or is it something I should be calling the dentist with? I tend to overreact about things and hate to be "that patient". Its hard to get a good picture of the spot but hopefully this will give you an idea. TY!