Hi guys Our 9 week bullmastiff pup has been really lethargic for the last 18 hours. He is eating and drinking, and toileting as normal but inbetween is just floppy and constantly sleeping! We have only had him home a week but this is opposite to his usual behaviour. He is a chilled sleepy dog anyway, but we usually get 15 mins every hour of mad pup who wants to play! This last day there hasn't been any of that. He isn't in any obvious pain, we have checked all over and prodded gently in the tummy but nothing. He only wakes or moves when we pick him up to take him outside for a wee, and after that he takes himself off to his crate and lays down to sleep. We are off to the vets the day after tomorrow for his 2nd Jab but we are worried. Has anyone experienced this? Any advice would be great.