Yellowfish Swim - Bubble bubble bubble

I felt horrid in the pool tonight, strained and poor breathing. Barely made it through the training and laps. The sprint was a terror, and it was only 4 laps of sprints! I did the sprint in my normal lap time. Bleeaaah....... Breathe breathe. Self-consolation that it was a 'down' training week. Next swim should be better.