My parents are concerned for our little guy Marvin as he’s suddenly had a drastic change in his behavior. So he’s only 1 1/2 years old and since we’ve had him we’ve found he’s got cerebellar hypoplasia and has some minor form of vision issues. Ever since we first got him as a kitten he’s been extremely energetic and always been aggressively playful. Overtime he’s slightly mellowed out but just last week all of a sudden he’s been sleeping almost 90% of the day and night and his walk has gotten worse. We’d take him to a vet but thing is he was just there less than 2 weeks ago for his usual checkup and was perfectly fine. I don’t think anything should be wrong but I don’t want to take that risk.