Welcome to Healthcaremagic
Thanks for your query
As you urinate many times a day and a kind of pain in kidneys, one possibility is that you have a urinary tract infection
for which you need investigations, like urine routine and microscopy and ultrasound
of kidneys and bladder. But looking at a premature ejaculation
also, a possible differential diagnosis would be high anxiety. You need to be evaluated by a surgeon/urologist
and andrologist in this regard.