From past few months I am feeling mild pain in my penial shaft (while both erected and not erected).Even if I tap on my penis shaft gently with my finger, I feel pain.I am not sexually active so never had any sexual experience sometimes I do masturbate, like once or twice a month. Sometimes the pain is severe and sometimes it's mild. Sometimes I felt burning while urination. I had kidney stones in 2023. Pain is in the mid part of the shaft only. I am diabetic since 2021 and on insulin from August 2023. Please help me with whatever it is, it's scaring me now.