4 weeks ago I had a general bad cough..runny nose etc etc..,tried night nurse..,fortunately I was on leave from work..,but periodically ,after going back to work ..,I seem to be under the weather..,Now..as of yesterday..,aches and pains ..muscular and joints..and a very slight fever...,not off my food..,lethargic /lack of energy.In general I am fit and healthy 1.8m /70kg.