I know I asked about this recently but I'm getting really frustrated with my recovery runs and HRs. In the last week I've had 3 rest days, only one hard session (6 mile tempo run), and my 3 'easy' runs have been really hard. My HRM was showing my HR to be between 55-60% WHR but my breathing felt really hard and it was an effort not to slow down. Last night I was trying to hold a conversation with my daughter riding her bike along side, again at the same low HR and I felt I was really out of breath even though my HRM was telling me I was well within 'conversation pace'. What's happening? It just doesn't seem to fit what I know about training with an HRM.
This year I've trained for 2 marathons and a 23 mile fell run, could it be that it's finally caught up with me?