So worked at home all day yesterday. Finished at 4.30 and was literally sleeping by 5.30. I had a few coughs yesterday but nothing serious. My back is sore to touch round my lung area and I feel chesty. I feel as if I am just clearing my throat all the time - throat a bit sore. The main symptom is feeling absolutely washed out. Don't have a temperature so far but did feel a bit clammy yesterday. Literally can't do any work today as feel so tired. What do I do?