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Last month, a blogger reported that she spotted socialite Amber Rose and her boyfriend 21 Savage at a Buckhead (Atlanta) clinic. The blogger reported that the rapper looked very weak and that Amber held the clinic door open for him (click here if you missed it).

On Wednesday, the ailing 25-year-old rapper, whose real name is Shayaa Bin Abraham-Joseph, posted an Instagram photo of himself wearing an oxygen non-rebreather mask.

“[E]very time I come to Denver I can’t breathe,” he wrote, referring to Denver’s high altitude.

Well, millions of travelers visit Denver and they don’t require non-rebreather oxygen masks. So something else must be going on with him.

A non-rebreather mask delivers a high flow of oxygen to patients who are usually critically ill, but they don’t require breathing assistance (ventilator machine).

Rumors are running rampant that the rapper is battling a longterm undisclosed illness.