Calling Discus lovers!

I feed my discus a variety of food including mostly FD Blackworm, Vitacomplete granules, followed by frozen mysis, Brine shrimp and bloodworm.

My question - if I feed bloodworm more than once on consecutive days, some of the fish appear to experience mild indigestion and go off their food for a day or so.

Has anyone experienced this or have any comments in this regard?