More severe symptoms include fever, chills, and a jaundice. Jaundice is a condition where bile is backed up into the liver when gallstones block the cystic duct. This causes the bile to be forced into the bloodstream, where it will travel and cause your skin and the whites of your eyes to turn yellow.
The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
The outer layers of these planets are made up of hydrogen and other gases. So the Sun is the collapsed core of an interstellar gas cloud, and the planets, asteroids and comets are small lumps of dust or ice chunks which stayed in orbit instead of spiraling into the Sun. The planets all formed within a very short period, probably a few million years, about five billion years ago.