Hi.
Thanks for your query.
Noted the history and understood your concerns.
pain in the back, behind the eyes, hot and
cold sweats can be due to some sort of infection and the
dehydration can cause
constipation along with the less intake of food and water due to loss of appetites.
Yellowness of eyes is misleading and only the blood tests like CBC,
liver function tests and as needed will help to get a proper diagnosis.
If there are no other abdominal symptoms, it is better to get the laxatives and/or
enema to relieve the constipation.
Symptomatic treatment along with specific treatment as per the clinical evaluation, examination and reports of investigations can help you the best.
Take full diet with more fibers to have proper bowel movements.
Maintain hydration well.