http://petoftheday.com/talk/showthread.php?t=139808

However the past two days he's been breathing very fast and his heartbeat has been extremely fast (you can feel it by putting your hand on his side)
So I took him back to the vets, the head nurse examined him, and said he should see the surgeon.
So the surgeon saw him, he examined him, looked in his eyes to see if the pupils dilated which they didn't. Now I'm assuming after having his thyroid problem that he has hypertension (high blood pressure) which can be caused by having a thyroid problem.

Post #34: http://petoftheday.com/talk/showthre...7&page=3&pp=15

I am not trying to scare you, but IF some of these other symptoms apply, please get Jimmy to the vet ASAP. Don't want Tiger to lose his best bud!