Hi there,thanxs for putting up the question on healthcaremagic. According to your description,it could be a parasite infestation.Common symptomology of an paracital illness is referred to involve fatigue, tempreture, social withdrawal, and irritability, also other emotional responses accompany immune activation, including anxiety.Parasites, Bacteria and fungus can be detected with specific testings, Feacal Parasite and Microbial test are available for detection of such cases. MRI nd CAT scan can be done for detection of such cases. As you mentioned,the patient was in direct contact with dogs. Canine roundworms and tapeworms can also cause diseases in humans. Worm eggs are excreted in dog feces, and after two weeks in the environment they become infectious to humans. If accidentally ingested, the worms can migrate to organs like the liver, lungs, brain and eyes. As these parasites are not supposed to be in a human body at all, the immune system responds by trying to wall them off to stop them moving any further. The disease in humans is known as visceral larva migrans, or, if in the eye, ocular larva migrans. -So Regular deworming and flea control for dogs is must to prevent transmission to humans. Your veterinarian can advise on the most appropriate treatment for your dog. When playing with your family dog, always wash your hands after contact, avoiding kissing it, and do not allow it to lick people on the face. Hope it helped. Regards, Dr neha.