Welcome to HCM
After going through your history you suffered a Viral fever
3 weeks back ,you have taken enough medicines ,it is correct approach to keep a record of temperature so that it can be documented that there is real rise in temperatures and not just a feeling and tiredness
If there is no other problem just take healthy diet and plenty of fluid and may use paracetamol
on as and when required basis.As many times some variation in temp. may be normal.
If Pyrexia persist then it should be investigated for the purpose of knowing the cause as some times hidden Tuberculosis
,Atyical infection or connective tissue
disorders or even malignancy may be the cause but in your case it is very unlikely???
good Luck to you