Carbon monoxide is an odorless, colorless, and tasteless gas that is near impossible to identify without a proper detector. It is caused by fuels not burning completely, including wood, gasoline, coal, propane, natural gas, gasoline, and heating oil.
The cause of lethargy may be suggested by its pattern and accompanying symptoms. If it starts in the morning and lasts all day, it could be due to lack of sleep or depression.
Frequent urination may involve output of either large or small volumes of urine each time a toddler goes to the potty. Bladder infections are a common cause of frequent urination, particularly among little girls. Children who are potty trained who suddenly have several accidents may be experiencing an underlying medical cause.