prolonged fever in my german shephard

Subject: Re: Prolonged fever in my German Shephard
Date Sent: 06/06/2010

Dear Sir/ Madam,
  I am from the city of Taj Mahal, Agra (India). My 7years old D.I.dog has been suffering from high fever 104-105 F, from mid of April 2010. My Vet administered him paracitamol till a week but remained ineffective. Then he got some tests at human pathology haemoglobin,TLC,DLC Platelet counts were normal on 29/4/2010. Again  in tests on 14/5/2010 his platelet counts were 1,20,000/cumm., Neutrofil 88 %, Potasium(K+) 3.50 mEq/l, Albumin(A) 3.52 gm/dl, A/G Ratio 1:1, Alk, Phosphatase 193.4 IU/L, Vet again administered him paracitamol for one week fever reduces 104-105 F to 102-103 F.But not normal having some ups & downs between 102-103. When medicine stopped it raised in between 103-104 F till date.
Sometimes blood in stool is also monitored and dog feel dfficulty during stool & some abdominal pain from six months.
The dog has been aleady suffering from Diebities Insipidus & a human urologist has administered him hydrochlorothizide 12.5 mg  & desmopression 0.2 mg morn & eve daily. Prior to the administration the D.I. medicine, the dog was drinking 10-12 letrs fluids daily. Now he is drinking 3-4 letres daily.
      Are these the side effects of medicines or due to DI problems any body part of the dog is damaging. His creatnine was 0.6 & BUN was 7.8 mg/dl on 17/3/2010 & ceatinine was again 6.0 mg/dl on 29/4/2010.
      Please help me in understanding the reasons of prolonged fever. The dog has no any appetite loss till date.
                                                                   Mukesh Verma
                                                                 93, Kaveri Vihar-II
                                                                   Shasabad Road
                                                                        Agra-282001.