Isolating a pet that has diarrhea and other questions

[anas9]

Hello,
i have three kittens,
they just hit the age of 6 months and about to get their vaccines this week.

the main quesiton which brought me here is the first 1
- one of the kittens tends to get diarrhea once a month. when he gets it, he steps on his own diarrhea then walks around the house which makes a big mess. i read that i should give my kitten bland food (boiled chicken) and prevent him from eating cat food. to do that i have to isolate him in the bathroom, with food/water and a litter box. also a website discussing diarrhea recommended isolation too.

the question though, he does not stop meowing loudly, like he is crying. other kittens don't mind isolation in the bathroom, but he does! i also noticed he would not eat nor drink during isolation, even if it was for 24 hours. it's not about the food. today i am isolating him again, but gave him regular food. he still would not eat. after almost 24 hours, i let him out, he went for the water in the living room, but would not drink water during isolation.

the crying he is going through, i feel sooooo bad, but don't know how mean am i being, i read in so many places that isolation is not so bad. what do you think?

2- all my cats tend to have dirty stuff around their eyes. 2 of them have little secretions, sometimes blood red, sometimes not so red. a third one (not the diarrhea one) has lots, i have to clean his eyes everyday and it's blood red. when i wipe his eyes gently, they not dried secretions are blood (in color at least) and the dry pieces are VERY dark. same color as dried blood. how serious is his condition.

i plan on taking them to the vet this week. the vet is far and their schedule is VERY limited. by the time i get back from work, they are closed.

3- the same blood eyed cat sheds a lot of hair, grooming doesn't do much, actually, as long as i am grooming he is shedding hair. i feel that if i keep grooming, he will go bald and the hair i pull with my hand gently end up getting pulled in patches. does this mean he is very sick, i read this somewhere. he seems healthy otherwise.

don't flame me about the isolation, i truly love the little one and spent a lot and put a lot of care on him to treat him from suspected FAS (Anemea). after hospitalization for 4 days, they told me he had bladder infection. but never mentioned he didn't have FAS, some truth may have been hidden from me to justify the costs. which is acceptable, because i was happy he survived. he was smaller than my palm at age 2 months, now he is growing up normal.
thanks.