maleficent

I don't mean to concern you - -but I am going to concern you -- Symptoms you are describing could be
Mono
flu-like symptoms
headache
general fatigue
fever
puffy eyes
poor appetite.

Later symptoms include may include a sore throat, swollen lymph nodes and enlarged spleen or liver.

Or Diabetes
The classic symptoms of diabetes are:

frequent urination, with large volumes of urine (polyuria),
excessive thirst (polydipsia),
hunger (polyphagia), and
weight loss.
Other symptoms might include:
fatigue,
blurry vision,
odd aches and pains,
dry mouth,
dry or itchy skin,
impotence (in a male),
vaginal yeast infections (in a female),
poor healing of cuts and scrapes, or
excessive or unusual infections.

Both of these conditions are treatable - it's more than likely nothing, but -- you never know -- just go...

__________________