Thats exactly what there doing and just started to see a tiny bit of blood drench as stopped that one still strains slightly there just looking abit fed up but still drinking there milk fine just want them to pick up abitDid he take a sample to test? Can often get some scours with a change of diet for example from cows milk then onto powder can upset them but takes a couple of days to show generally.
A good cocci sign is straining when trying to poo and blood when severe.
if they are drinking well and aren’t loose anymore wouldn’t worry with rehydration powder still.