Completely over-reacting most likely but..
I express in the morning for the dreamfeed at 10pm/11pm. I've been used to getting 4oz from the right breast, which has gone down to 3oz in the past week. At best it takes 20 minutes, at worst 40. I feed DS from the left - not at the same time (because he kicks his robotic nemesis out of the way most of the time), but before.
This morning I expressed a lot later (at 930 rather than 730) - my breast didn't feel full in the same way and it took about 40 minutes to get 2oz.
Is this going to be a problem? A bit worried...