hmmmm... how long has he been shedding? I know mine can drop handfulls at the vets - onto that metal table and the vet always says it is normal. RB used to be the very worst and he was also a very nervous kitty. Is Cassy shedding repeatedly when you pet him or what Poor baby! If it keeps up - maybe you should check with the vet about an occasional stress relieving medication (if it IS stress related anyway) Just an idea....
Is this something new?? So sorry - bet you are worried