Struggling but consistent

I was excited to swim today since I had had a fairly bad one on Monday. Everything felt okay until I hit the water - my streamline position was painful which meant my triceps were so tight, probably from those darn burpees. Anyway, I worked through it - warmed up, and main set was 4x300's on 5. Held 4:10, 4:10, 4:09, 4:08...can't say I wasn't consistent there and heartrate was in the 160s. 2nd part was 5x150's (having to go faster than 1/2 the time in the 300s) - alternated 150 free with 150 back so ended up doing 3x150's - times were 2:03, 2:00, 1:58...that was hard, but proud of my last one since the arms were burning. After a few more small sets, total yardage was 3800 - I feel beat up.

Workout #2 at home: 400M run, 20 burpees x 4 for time. Ugh...not burpees again. Off to get changed.

Done...15:56 - nothing to say except I sucked wind.