Dr on here stated could be pgad or hernia. i did forget to mention constipation and low uterus? would any of these tie to pinch feeling behind navel?

There may be an : Explanation - as I understand the question you are a pinched feeling behind the navel and a low uterus - I presume uterine prolapse? If so, maybe it's tugging on the urachus, which is a structure that used to be blood vessels to/from the navel while you were a fetus that has since before a ligament which goes from the bladder to the umbilicus. Other possibilities include endometriosis, adhesions,