My cat started acting strang and weak. Disoriented and not eating. Weak legs ect. I took her to the vet and she was diagnosed with Diabetes Mellitus, dehydration and lethargy. She is to make 1 unit of Lantus every 12 hours. The doctor gave her her first shot. She is home now and cannot stand up. Is this normal. He did say it would be a few days until she felt better. Of course the office is closed now and emergency care will not answer questions over phone. Thank you in Advance for any input.