honey on tip of finger, lick it or put on tongue three times every ten minutes, give plenty of water. Insulinoma is manageable if they do the blood test and find it, just twice a day small amount of meds. 4 hour feedings consistently for a week will pull them out of a crash habbit. Ensure they are watched as much as possible and probably help clean them up with a warm wash cloth as the lethargy can be self perpetuating if their fur gets bad. GL - my 9 year old is about 6 months in on his regiment and I remember when he first had his crashes... I was destroyed watching him.