A feeling of discomfort, 7 letters
Early sickness symptom, 7 letters
Feeling of discomfort, 7 letters
General sense of depression, 7 letters
Not-so-good feeling, 7 letters
Onset of illness, perhaps, 7 letters
Sick-and-tired feeling, 7 letters
Unfocused uneasiness, 7 letters
Vague awareness of decline, 7 letters
Physical discomfort (as mild sickness or depression), 7 letters