yes!
The cat would vanish mysteriously for days, then reappear still apparently healthy and well-fed. In some cases of malaria, symptoms will reappear over a period of weeks or months.
They were interested, then lost interest. Months later the interest is renewed, and then they lose interest again, probably for the same reasons as the last time.
usually a cycle but can be 4 months
The symptoms usually disappear within a month, although the lymph nodes may remain swollen for several months.
Colic is distressing, but it is not dangerous. Symptoms almost always disappear before a child is six months old.
Symptoms may appear from several weeks to several months.
Symptoms of malaria can appear as quickly as about a week after exposure, however, other times, symptoms may not appear for as long as eight or ten months. Common symptoms during the early stages of malaria include: fever, chills, headache, sweats, fatigue, nausea and vomiting.
Pregnancy symptoms appear at different times for different women. Sometimes they don't start till a week after, and some women don't even get the symptoms. Many women say that they got the symptoms the day after, and some reported that they didn't even get the symptoms till a few months into their pregnancy.
The symptoms most often appear as a "stomach flu" Cramping, pain, diarrhea and nausea soon after eating. This can go on for weeks and months then just simply disappear. Most Crohn's sufferers never get diagnosed right away because of this. Weight loss and dehydration often follow because eating is triggering the symptoms. Once the patient is finally diagnosed, there are medicines that will control the symptoms but there is no cure.
Symptoms of hypothyroidism usually appear slowly over several months or years. However, some people develop symptoms of hypothyroidism quickly over a few months. In general, the lower your thyroid hormone levels become and the longer they stay low, the more severe your symptoms will be
Most people develop symptoms of sickle cell disease in early childhood (4-9 months)
Samoyed Hereditary Glomerulopathy is a genetically linked disease that is carried by females and only severely affects males. Male dogs who have the disease first appear healthy, but after 3 months symptoms begin to appear and worsen with time. These dogs usually die by 15 months from renal failure. Female carriers may exhibit mild symptoms of the disease, but these are not fatal.