yup SHED BELLY! my mojo girl got super pink last time more then she ever has so i actually thought she was mildly burned...nope. just shed belly.
i used to check temps neurotically too but have calmed down some. dont worry, once you get into a good routine with monitoring the temps & humidity, it gets a tad easier. i write everything down in notebooks & am crazy with details for the just-in-case scenario for a possible future vet visit.