Thanks for taking the time to read my post
I have a 6 year old male cat that is a little bit nervous when it comes to moving or experiencing change in any way. My wife and I have had to move several times due to new jobs and school so hes not new to this. He has also visited with my family up north when we had a few weeks of vacation each year where he rode in a car for 8 hours and had a complete change of environment (lots more people, new litter box, etc.)
Previously, while he was a little bit nervous during these changes he never showed any real behavioral changes. Though, during our biggest move where we moved from a small college town to New York City, he did have about 24-48 hours of frequently going to the litter box. He continued to eat, drink, relax as he always does, but when he went to the bathroom little to nothing would be left and he did it frequently (maybe every 20 minutes or so). We were going to take him to the vet but we read many places online that this was a very common behavior for nervous cats when undergoing a significant change. We also had a ton of boxes everywhere which from what I've read, clutter also leads to stressed cats. Since it stopped within 2 days we never took him to the vet, but for his annual checkup we mentioned it to our vet and she said as we had expected that this was a pretty common behavior.
So this brings me to now, again we had an extended vacation and brought our cat with us. Knowing that he basically just sleeps in the car for the full ride and has no real issues we thought as per usual it would be just fine to bring him with us (we've actually found he gets really stressed if we leave him with a pet sitter, so bringing him with us we thought was the lesser of the two evils). Well, what ended up happening was that we hit a snow storm both ways and had to stay overnight in hotels. I think this sort of double whammy of new places freaked him out a bit.
I just returned home yesterday afternoon and ever since hes been doing his frequent bathroom visits again. Since he did this before normally I wouldn't reach out to anyone for advice but late last night he also started throwing up -- I'd say about 3 times in total. He is still drinking, though he is not eating very much.
I'm not really sure what to make of this, should I leave it for a couple days? He absolutely hates the vet and I know would stress him out big time -- which in my mind I'm thinking will make things worse. He is still purring and relaxing in the window as he always does, hes not meowing or doing anything that would make me think he is sick -- other than throwing up a few times and frequenting the litter box with very little results.