I had to put my little Siamese to sleep this morning. He was my little buddy. He would stalk me at night, follow me around until I sat down. Then he would sit in my lap and let me hug him and kiss him and snuggle the night away. Tonight will be especialy hard when it hits me that he's really gone, when he doesn't come to find me after everyone is in bed and quiet.
Turns out I had a plant(s) in my house that is toxic to pets. My cat was poisoned. The vet said he was so full of toxins it was amazing, that even if I had the thousands of dollars to spend on a last ditch effort at treatment the prognosis was very poor.
I found one list online here. I'm not sure how complete or accurate it is. I am also not familiar enough with plants to know what they are. From now on, no plants for me. I'm just so very, very sorry I had to learn this in such a horrible way.
This morning while we were getting ready I sat with him so my daughter could get dressed. Then she took a turn and I heard her sob and walk into my room with the cat. I said, "Honey, he's got mess all over him." She said, "I don't care, he wants you! He got up and tried to follow you!" He passed away with my hand on his little head and my words in his ears. I'll miss you, my baby, and I'm so sorry I didn't know I had dangerous things in my house.
Please research for yourself and make sure you don't have any toxic plants in your home so you don't have to go through this. It's bad enough when pets die, but to know it didn't have to happen if I'd only known is just horrible.

Oh Chris ... I am so sorry to hear this. My heart breaks for both you and Rhiannon. I wish there was something I could do to make the hurt go away. Please call me if there's anything I can do. My thoughts and prayers are with you and yours.