Hello! I was a healthy 27 year old until april of this year. I developed a quite large anal fissure as a result of chronic constipation. The fissure brought about painful muscle spasms that would subside with sitz baths and medication. After 3 months of topical ointments, the fissure would not heal on its own. My pcp referred me to a colo rectal surgeon, who suggested a lateral internal sphincterotomy. Recovery from the surgery was great and i felt very little pain, no meds necessary.. 2 weeks later, I began to feel a slight sting on the left side of my rectum. Not very deep inside, maybe a few inches above the external sphincter. I thought nothing of it and continued to do daily sitz baths to keep my muscles relaxed. About 2 month ago, the pain on my rectum intensified, and spread to my perineum. This makes sitting uncomfortable. After about a few minutes of sitting, i feel burning on perineal area and tingling/burning on the left side of rectum. My CRS reexamined me in November and concluded I was healed. However, she noted my rectum was very tight. I am currently scheduled for pelvic floor PT. Im not sure whether the surgery or the fissure are responsible for my symptoms, but im really scared that i may have PN. My symptoms have progressively worsened and I fear the worst. Im taking every precaution possible to avoid sitting and to take it easy until I see how i respond to PT. Are these symptoms consistent with PN? How in the world would I have gotten it?