monday swim: drills drills drills

Today didn't feel as repetitive as always, but man I was having really big trouble breathing 5/7. I could barely even keep the five. It was 100build, 100 5/7, 100 easy} all repeat. Since I got stuck behind some people, I wasn't even building up to a serious effort. But I was gasping for air on the breathing sets. It really SUCKED! sigh...