Managed another decent swim today, 100 lengths in 1hr2mins. It felt good, pace ok breathing ok, but I have noticed that whichever side I breathe on I am concentrating on that side of my stoke, which seems to be ok, however I realised I have no idea what I am doing with the other arm... As though I can only apply some sort of technique to one side, anyone else had this or am I just sounding a little bit mental?