Help! D&V, lethargy and not trying to kill me!

Hi all, sure I'm probably worrying over nothing but... Tuesday evening Rasputin had diarrhoea and was vomiting (first food and then white foam/froth) and was generally quite lethargic so he slept in the bedroom until he perked up and started trying to eat my toes (at about 2am). We kept him on biscuits and water for 24 hours.

Yesterday evening and this morning he had Whiskas kitten pouches and happily nommed them all but this evening he's completely ignored his dinner (Whiskas again - keeping him off the Bozita due to its richness) and is again subdued (although less than Tues). He's NEVER ignored food before nor has he ever vomited. His 3rd eyelid was up a little bit on Tuesday but doesn't seem to be at all today. He's had a poo once today (as per usual) and it was (according to the OH) slightly runny but not full-on diarrhoea and there's been no sign of further vomiting.

He's only allowed outside occasionally on a leash and only in the garden and we haven't changed his diet or feeding routine at all. Any advice would be appreciated as I really don't want to make an unnecessary trip to the vet but nor do I want to be missing something obvious but serious!

Personally (and others may have different opinions) I would remove all food / water immediately. Sterilize water bowl (quick boil in water) and replace with fresh water, and lots of it.

Get some fresh white fish (cod, coley, river cobler etc) and steam it. If you don't have a steamer you can do this either by putting in a pyrex etc bowl over a pan of boiling water or failing that loosly wrap in foil and chuck in oven. Feed small amounts of cooked fish for absolute minimum of 24 hours, pref 48. Only leave fish down for 20 or so mins and bin what is not eaten. After 24 hours you could try adding a little plain steamed / cooked rice to act as a binding agent. You could then try a little chicken, turkey etc.

If cat is still ok mix chicken / turkey with cat food until back to normal routine.

ANY doubt - vets.

Hugs to humans and furries xx

If he continues to be lethargic i'd get to the vet ASAP!

Thanks both, he perked up massively last night and seems to be back to his usual psychotic self today. Advice was very much appreciated though (and he enjoyed the chicken breast!)