Thanks for the great response guys. I will work on my breathing more. I did have a problem equaling on that last dive. I thought that it may be from not wearing the hood on that dive. I felt vertigo, yet the headache overruled all the other stuff that was going on. Now that people have explained skip breathing I did do that on the last dive because I got a hot fill and went in with 2400 psi in an 80 Al tank. I thought it may save a bit of air. Wont do that agian. I now realize what I did and will really work on a rhythmic breathing pattern. Crazy as it sounds it's not in my open water book and I don't remember if my instructor even mentioned it..... thanks very much