Is it safe to drink something that says "Refrigerate After Opening" if it is room temp?

I've caught stomach flu and I can't eat solid food, I can barely even keep soup down long enough to digest it before I throw it back up again. Understandably, I am batshit terrified of making myself sicker, especially since I would rather shit myself than throw up.

I have a nutrition shake that says Refrigerate after opening and serve chilled, but it has been in my room basically all day and I haven't touched it. My room is quite warm since there are 4 reptiles in here. Is it safe to drink at room temp? Its basically just a protein shake with extra vitamins in it, no lactose but yes whey powder. It is an Ensure nutrition shake.

I apologize for the life story but this is basically my coping mechanism since I am bedridden and my eyes feel like they are being gouged out.