Why does my penis burns? never have sex, urine trial is ok, blook oral exam is ok dr said, im masculine 20 yrs, misery...?

burning comes and goes ever 2 weeks...does it business what i drink, i drank a lot of Coke the other hours of darkness?Why does my penis burns? never have sex, urine trial is ok, blook oral exam is ok dr said, im masculine 20 yrs, misery...?
Urinary tract infection; kidney stones in your own flesh and blood history?
You could also have a prostate infection. If you urine is really pallid then that can take home it burn too. Try to drink more water if to be precise the case.
Have you be masturbating frequently? This may be the culprit to your burning sensation.
Your urine could be very concentrated. Coke will motive dehydration because of the caffeine is a diuretic. So drink a lot of sea and see if it improves contained by a day or two.