"Hot and uncomfortable" ... not especially itchy, just irritable? I get this sensation from soaps that contain shea butter. I see it listed in the ingredients for Catie's Bubbles.
Because of this, I just keep away from soaps with this adjunct but every now and again a soap comes along that really peaks my interest and despite it containing shea butter, I might have a go ... first go will almost always be fine, second one, too ... but any continued use will bring this discomfort back into place and I'll have to consign that soap to the PIF pile.