Good Afternoon and welcome! I am Dr. Loretta, a licensed veterinarian and I am happy to answer your question.
I am so sorry to hear that Buck is not feeling well. Hopefully, this is a minor digestive disturbance possibly from something that he may have ingested but I worry because you say he is cold to the touch. If this is minor, follow these instructions:
Fast Buck for 12-24 hrs which he is doing himself to allow the digestive tract to calm down and heal.
Give him Pepcid AC or Famotidine at 0.5 mg per pound every 8 hrs. That can be purchased over the counter at the pharmacy.
Give only small amounts of water during the fast or ice cubes
After the fast, feed rice and boiled chicken (2/1)
If the vomiting has resolved, then wean Buck back onto regular food. If the vomiting persists especially during the fast, take your sweet Buck to your vet for an exam and lab work to determine the cause for this. This is extremely important since this can cause dehydration or other more serious concerns such as an intestinal obstruction or an infection that will require veterinary care..
Does that make sense to you?
Please let me know if you have ANY other questions. My goal is to give you 100% satisfaction and if you are not yet satisfied, please REPLY so I can clarify for you.
Sincerely, ***** *****