Hi cnxbennett. Poor baby! It sounds like night terrors to me as well, but it wouldn't hurt to speak to his pediatrician about it. In fact I think that I would.
His hypospadious repair probably was no picnic! I read up on that and was surprised to see that it's a common defect in boys when they are born. I hope the surgery was a successful one.
Perhaps the discomfort (??) before the surgery was contributing to his night terrors. It's so hard to say.
I'm glad you came here and I hope you find some support on the issue. But still, I would be tempted to see his pediatrician about it.
My daughter and son-in-law had a horrible first year with their baby. He'll be 2 this week. His problem turned out to be acid reflux. It was just awful. He screamed and woke up all the time during the night.
I hope your son gets better soon.