I used Hartz Ultra Guard Plus Flea and Tick Spray for Cats on my cat Bella yesterday morning before work. She is a two year old perfectly healthy active kitty. When I came home around 3pm, she was hiding in my room and very lethargic. Immediately thinking of the flea spray, I took her and bathed her. After I dried and combed her I started looking online and came across all of this and other horrific stories. Scares me to death! I hardly slept last night; she seemed to perk up a bit after the baths (I bathed her again with the dish soap after I found out all of this stuff), and I made sure she had plenty of water last night that I had to administer with a syringe. She was not strong enough to even get up, let alone go drink some water. As of now she is still not as active as she usually is, but for the moment (with the vets advice) we’re just keeping an eye on her to see if she has any more symptoms. No tremors or seizing…but I see stories where it takes days to happen! All I have to say is this is a horrible thing to go through, and I feel so sorry for everyone who has lost a pet this way. Truly horrific. I’m hoping Bella will be ok. Hard to think trying to help her almost killed her. I wish I would have researched this before instead of after.