Hello,
High fever, fatigue with extreme shivering are the symptoms which can be observed in different illnesses which include infection due to some parasite, microorganism. You said the endoscopy and
colonoscopy results are yet to come but currently managing these symptoms is important.
Fever that high and such symptoms are indicative of viral origin usually. I would suggest you to go to ER or your doctor and also get your blood work done for presence of dengue,
typhoid fever and malaria. Even though there are no other symptoms apart from fever present currently, regular blood workup is necessary and your doctor will advice all the necessary diagnostic tests and once the results come depending on the underlying cause, he will guide you on further management.
For the fever, make sure you take an appropriate dose of
antipyretic medicines like
paracetamol on time to avoid further difficulties.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Manisha Auradkar, General & Family Physician