Today's (very short) swim was exceptionally hard work and characterised by slow length pace even with a high perceived effort. I've run for the preceding 3 days and suspect that I've built up a bit of fatigue. Also my swimming practice has been rather lacking lately so I can't expect much. I didn't have the pull buoy and throughout my legs felt tired and my usually ineffective kick was weaker than usual.
At least I tried to keep good form.