Our 6 1/2 year-old neutered male Maltese (on the thin side, never been overweight, eating high grade, intestinal friendly food since puppy and rarely given anything other than reg. dog food) has been having intermittent tummy and obscure pain issues for a month and and half and after 10 trips to vet's office and three blood profiles (one comprehensive one), other than initial dx of pancreatitis, vet is stumped as to what might be wrong. Initially (first week of August), our Maltese did vomit and wouldn't eat (and he always eats voraciously). Taken to vet around first week in August. Xrays showed nothing. Blood workup showed mild pancreatis and stool sample did show some minor blood in it. He was started on mild Rx diet and sent home. We were told to give him 5 mg. Pepcid 1/2 before each feeding and to try small feedings. We did this. He seemed to get better but then would have bouts of what appeared to be severe pain (where he would cry out and tremble uncontrollably), but we couldn't tell where pain was coming from. Sometimes he acted like he couldn't walk, holding his left foot up, other times he would try to walk but seemed he couldn't. It is awful to watch this. Back to the vet's. Vet thought dog might be dealing with a couple of issues, like maybe intermittent pancreatitis and another maybe cervical issue or pinched nerve or something. Vet started him on Medcam (?) for pain, small amount every AM, then changed to every other day, etc. Sometimes he has cried out like in a lot of pain, but this can be done on days when he is eating fine. And then a few times, he doesn't seem interested at all in food (and he has ALWAYS been interested in food). He is generally not himself though, even on days without pain episodes and no obvious tummy issue. Just not himself. Maybe only one time with very loose stool, and another time with kind of loose stool (but nothing signficant there). Another stool was checked a couple of weeks ago--no blood in it and negative for parasites. Blood workup done then completely normal. Two days ago he mostly dry heaved in the early AM hours (3 AM to 6 AM) about every 10 minutes. He was at the vet's at 7 AM and observed there all day. No more dry heaves. Vet could find nothing wrong with him. This AM, won't eat, but no dry heaving or other symptoms. He has been in and out of vet's and hospital about 6 times in last 45 days. We are worn out. All blood work shows normal now and they have done very comprehensive blood work profiles. Vet is stumped. By time we got him home from last vet appt. 6 PM, he had stopped the dry heaving, and after giving him Pepcid 5 mg., he ate and held it down fine. We gave him no more pain meds, just Pepcid 5 mg. half hour before each meal. Now today, Sept. 24th, absolutely won't eat, but no vomiting or dry heaving. He has been on special Iams Intestinal Low-Residue canned food diet from vet's office since first week of August. If anyone has a clue, please give me your thoughts. Most recent blood work shows no signs of pancreatitis, but something has to be going on. Vet now (today) says perhaps we are dealing with a food allergy and wants us to come back in for another blood draw after 12 hours fasting. Says this blood will be sent for very specific workup to rule out gastro/intestinal issues. But if anyone has some info that could be helpful, I would sure like to hear it.