This pimple been on my face for 2 weeks now and it's just not shrinking but rather increasing in size. i put clindamycin medication on it but it doesn't seem to get rid of the pimple

that stuff does always work, what I do if I have one is I wash my face and rub apple cider vingar mixed with water, bc that helps get rid of them ( it works, my grandma saw it on DR. Oz, and she made me do it , I have been doing ever since.) Hope this helps :)

don't worry, but do consult a doctor.

explanation:

having a high metabolism at age 13 is not abnormal.   however, if you are concerned, do consult a doctor.   the doctor may identify a correctable issue, and then you'll have your answer.   in the meantime, there are a few steps you might consider.

first, reflect on just how much physical activity (work out and dancing) you are getting relative to your caloric intake.   keep in mind that if you are interested in gaining weight, you must have a higher caloric intake than output.   second, if eating robust healthy meals is not providing enough calories, you'll need to include high caloric, yet healthy, snacks.   i warn against using an over the counter high-calorie supplement (drink or food) until you have consulted a doctor.  

what are the choices?