@robg Take a few days off and then reduce your workouts to 2x per week and see if that improves things. You're probably outworking your capacity to recover.
Also, do less strenuous workouts. If you're going to failure, stop going to failure. If you're already stopping before failure, stop the set when your rep speed or form changes.
When my life is too busy for my recovery to really handle a larger workout, I change the goal of my workout. I reduce the amount of exercises to 4-6 and do sets of 2. On each set of 2, my only goal is to add 1 rep to each set. I know I could add 2-3 reps if I pushed myself, but I only add one rep to each set. These workouts are effortless and the gains come steadily.
Also, do less strenuous workouts. If you're going to failure, stop going to failure. If you're already stopping before failure, stop the set when your rep speed or form changes.
When my life is too busy for my recovery to really handle a larger workout, I change the goal of my workout. I reduce the amount of exercises to 4-6 and do sets of 2. On each set of 2, my only goal is to add 1 rep to each set. I know I could add 2-3 reps if I pushed myself, but I only add one rep to each set. These workouts are effortless and the gains come steadily.