Hello , I have developed a fever around yesterday , it is now up to 100 , and possibly higher (no thermomitar) my ribs are sore to touch , as well as left side of back. I have a sevre headache on the left side of head , and down to my ear. I have a slight sore throat when swollowing . It is not much of a concern at the moment , unless my headache persists , which is very painful.