is it normal for penis to most feel sore while becoming erect, but once fully erect no discomfort continues until ejaculation then I almost feel soar in the middle of penis and almost a burning feeling in the tip of my pee hole sometimes. It does not hurt to pee and generally doesn't hurt ever except when having sex or masturbating I feel this discomfort. Sometimes over masturbation has even led me to feel as though there is a rubberband around my dick, but no dark purple colors or feels of circulation loss, I take time off from sexual activity and it clears up mostly but then seems to come right back