Killing myself

Last Wed I ran to the UT track and did a wimpy circuit workout, 3x with 2 laps between. I was out of town thurs and fri. Saturday I ran with Banjo for 30 minutes, Sunday I did another 40 mile bike ride-- I felt competitive and pulled the group into the wind for long stretches, and nearly killed myself, had real problems finding a pace I could maintain. Monday I ran on the roads for 26 minutes, hard, almost like a tempo-- work related stress? Today I did the shoal creek loop on the bike, splits 9:23, 9:24, 9:19. I'm familiar enough with the course to where I don't think I can squeeze any more out of it except by getting faster. I was thrilled I could drop any time on that last repeat, nearly killed myself trying though.