The lab test required to find if you have Dengue is to do the Dengue IgM test which is specific for the dengue infection, you should also do a CBC to check if any of the blood parameters are altered such as platelets. If the results become positive visit the nearest general medicine so that you can be treated accordingly.
Next Steps
Follow the steps as advised
Health Tips
If condition persists or worsens visit the ER at the earliest