Hi Dr. I have body pain and cold, this almost 3...

Treatment for tiredness and pain at joint
the treatment according to the cause but the most common cause to these symptoms which is  mentioned above is viral upper respiratory infection or lower respiratory
and you must take medication like pain killer like paracetamol 500 mg tab 3times in day and also antihistamin like loratidine one tab 2 times for aday with good nutrition and if need getting enough eat fruit and vegetbels
Investigations 
You can ask for CBC to see the level of WBCs or level of netroufile which increased in inflammation and infections of respiratory . Also ,you can ask your ENT doctor for examination of upper    respiratorry tract and tonsilles to
 clarify or prove any redness or any whitisch pus on it
and if you with direct contact with infleunza pt you must do tr-pcr for corona virus
 there is several cause of joint pain and general tiredness
acut respiratory infection
chronic respiratory infection
malaria
infection at joint
asthma
my advise
We recommend that you go to the internal doctor if symptoms increase to keep you saf