I have a baby red eared slider (I don't know how old he is because the previous owner randomly gave him to me not really knowing how old the turtle was) and he keeps digging holes into the gravel/rocks. After he digs a deep hole, he just sits there for a long time and when he's hungry or something, he walks out of the hole. Is he trying to keep warm or cool? Is this a sign that my turtle's getting sick? My turtle is also forming small rough-looking white spots on his shell. My friend told me that he is just shedding(?) and will form a new shell soon, but I am still concerned. Someone please help.
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