Cry when baby cries?

Roseanna
My baby hates diaper changes probably because his circumision so he'd whine and fuss but most of the time I'd be able to get it done before he got too mad. Well tonight I changed his diaper and he was fussy right away and he ended up peeing on himself so that made him more mad and then his poop was stuck to his butt so I had to wipe him more than usual which made him worse. I should have tried to comfort him but I just wanted to get it done so I would he wouldnt have to be upset anymore and then my dad came in and asked what I was doing to him. Poor little guy. I ended up crying, am I over emotional or is it normal? That was probably the worst he's ever cried so far.