Is it normal to want to work out so hard that you throw up?

Yes...at 50..I work out at a place called Sparta Crossfit. I've been working out there for about 4 months now...I finally reached the level of Spartanism when I worked out so hard that I threw up. I now have a reserved place on the barf board. At 50 I don't remember my mother aspiring to make her place on the barf board? My children 11, 14, and 16, all boys I might add, look at me as if I'm crazy? Yes, I am and I love this craziness for the right reason. I like it and it keeps me alive! I love that 18 y.o.'s are trying to keep up with me (at least with their fitness level). Will I throw up again? I don't know, but it is nice to have a choice?