Is it normal to feel so relieved when i say it?

I've heard before that cursing relieves stress, but I feel like taking God's name in vain by saying GD is more powerful. I curse a little more than I should, but I always steer clear of those words - they are very offensive to me, and to God I am sure. But what is strange is the couple times I have gotten so angry that I said it, it was like the weight of the world being lifted from my shoulders. It's like I'm always holding it in or something and to say it is to cast out my demons or something like that. It's weird. I don't think saying God bless you would have the same effect even though it is good to say. Well, anyway, is it normal and does anyone have an explanation for it?