My 14-year-old cat has 'vomited' very lightly pink-tinged white foam a couple of times (that we've noticed) in the past couple of months. She does sleep a lot, I am noticing, in the past few months, though I think she's just slowing down as she ages. Also, she had entropion surgery in May and I'm wondering if that took a bit out of her too. She has recently had blood tests and has been tested for hyperthyroidism (neg), leukemia (neg) and diabetes (neg). All seems fine apparently. Yesterday was the most recent time this happened and it just so happened that she didn't seem to settle. She followed me around and insisted she get on my lap and cuddle. She isn't always a cuddler. She didn't want anything, I let her out, I opened the window, I fed her, I played with her....she meowed so loudly and calmed down when she got up on my lap. Is any of this related or does any of this give one a clue as to what the pink-tinged white foam could be :-( I will take her to the vet if this continues or she continues to seem unsettled. Thanks for any comments in advance.