It can be found in some animal-based foods in its pre-made form, or found in plants in the form of beta-carotene -- a compound your body digests to form two vitamin A molecules. Yellow and dark green vegetables and fruits are good sources of the carotenes, including beta-carotene.
With the flu, you may feel very weak and fatigued for up to two or three weeks. You'll have muscle aches and periods of chills and sweats as fever comes and goes. You may also have a stuffy or runny nose, headache, and sore throat.
sore throat; sneezing; cough; headache or body aches; mild tiredness; Flu symptoms can include: dry, hacking cough; moderate to high fever, although not everyone with the flu will run a fever; sore throat; shaking chills; severe muscle or body aches ; headache; stuffy and runny nose; severe fatigue that may last up to two weeks ; nausea and vomiting (most common in children) Colds come on gradually over a few days and are often milder than the flu. They usually get better in 7 to 10 days, although symptoms can last for up to 2 weeks. Flu symptoms come on quickly and can be severe. They usually last 1 to 2 weeks. Use your symptoms as a guide to figure out which condition you have. If you think you might have the flu, see your doctor to get tested within the first 48 hours of showing symptoms.