Hi ! You are right in thinking that the reason for the right testis being pulled up could be due the operative scar tissue after hernia
surgery. As such the left testicle is normally a little lower than the right. But there is nothing to be worried about it unless it gives you much trouble and discomfort. the pain in the cord could be due to excessive pulling of the shortened cord or could be an element of epididymo orchitis
. Go for a proper scrotal support, and anti inflammatory drugs may be helpful, otherwise you can consult your surgeon. Good luck.