My cat pukes when my parents fight. Is it a stress response?

It makes me worried that Chandler is vomiting. I would recommend having your veterinarian evaluate him to make sure there is nothing more going on and it is just stress. If it is stress or from being bored there are so many fun toys for cats online you can order. Thank you for using Petco Pet Education Center, formerly Petcoach.

Shower may be not related at all to the presenting signs you described. Upper respiratory tract inflammation/infection (sneezing) and gastrointestinal disease may be possible. I would suggest to keep him indoors and if the signs persist have him checked by your local veterinarian. Antibiotics may be needed.

The possible causes of for vomiting are numerous. The fact that you recently moved (be in a month ago at this point) could play a role potentially as stress is a definite cause of GI upset in cats. Other causes can be dietary, gastroenteritis, pancreatitis, kidney / liver disease, allergies, foreign objects, and even cancer in some rarer cases in a young cat. Since there have only been episodes of vomiting total at this point, I wouldn't be particularly concerned as of yet. If you see this happening another couple of times over the next week, I think it is something worth investigating more. Hope this helps!

Stress and anxiety can caus them to hide and be scared. She may not be comfortable with your boyfriend. However they also hide when they don’t feel well, which would be my concern since she vomited. She does need to see a vet to see which is the problem but you can help by controlling her environment and limiting stress so she feels safe enough to come out more

Bring a new cat into the house can be stressful, so yes that could potentially be a cause of Kiri's vomiting. It could also be an illness. I think having her seen by a vet tomorrow is a great idea. I hope this helps.

Stress is definitely very possible. It sounds like you're planning on keeping the second cat, so I would recommend separating them, taking the new guy to the vet for vaccines, testing for viruses, and a general check up (take your adult cat as well, on a separate day, if the vomiting continues) and then SLOWLY introduce them over 1-2 months. Some cats never really adjust to a new cat in the household, so be aware that this might not go well. Good luck!

Usually stress in the environment doesn't cause vomiting in cats. I would be more concerned Simba could have another infection (Diabetes does predispose him to getting those) such as a urinary tract infection but cats can get gallbladder issues, pancreatitis or even liver infections. If this vomiting continues, Simba acts abnormal at all I recommend contacting your veterinarian to discuss rechecking him and maybe having blood work rechecked on him.