I'm unsure of what to do here.
I've taken my dog to the local vet, and they have found nothing wrong with him as far as any illness.
He's barely been eating, hardly drinking water, and has been acting very weird and skittish lately and seems very anxious. The only thing that I can think of, is that my roommate left to go back home a couple weeks ago.
The thing is, this behavior from my dog didn't happen until the last 3-4 days. Half of the day, he is shivering/shaking uncontrollably. Usually, if he ever starts shaking like he is, it means he has to go to the bathroom. I've been taking him out after I notice the shaking, and he barely, and i mean BARELY even pees. Yesterday, he didn't go #2 for a full 24 hours. He's not really even close to my roommate like that, but he is VERY emotionally attached to people, and will pee out of excitement for not seeing someone he's met only once or twice, or even hasn't met at all.
It seems to be super random. Earlier, he was very perky and upbeat and wanted to play all day. I ran around with him and took him to the park and played fetch. Now, after I got home from being out, it's almost as if he's cowering and scared when I called his name to come in my room and play, and again started with the shaking. My vet can't explain it, and I can't find any reason behind it myself. Any information would be welcomed, thanks!