I'm a 14 year old girl, and I was shocked when I observed today that I have a small hole the size of a pin in my left tonsil. I've always had pretty large tonsils, however I just recently noticed this hole. It appears to be quite deep but I can't see anything such as tonsil stones inside of it, and I don't have a water pick I could utilize to clean it out. The rest of the tonsil appears to be completely normal.
I've had what I believed to be whooping cough for the past three weeks, although I'm now questioning whether it is whooping cough (by the time I had begun to suspect it, it was too late for antibiotics, so I did not visit a doctor) due to this. My symptoms are an on-and-off mild fever, coughing fits (one in which I made whooping sounds as described in whooping cough), and a sore, clogged throat.
I'm just wondering what this is, if it's dangerous, and how I can treat it.