Originally Posted by sugarcatmom
You might want to start a new thread so that more people see your post, but in the meantime:
When was the last time your cat had a complete senior exam with blood work and a urinalysis? It could be that she needs an adjustment in her medication, or perhaps she's developed another issue besides the hyperthyroidism (such as renal insufficiency, or diabetes).
Thank you, I made this a new thread. She got blood work and a urinalysis just a month or so ago. They did say she was developed kidney disease. Could that have reacted on her so quickly?