She seems better today, ate some soaked pellets and drinking even ate cold watermelon.
I am assuming she got bit or got stung. One of the watle is swollen and feels hot to the touch.
@TudyBOT
My one year old hen is lethargic, not eating or drinking, slimy inside her beak. No sour smell, has empty crop. Her comb and wattles are red.
I gave her couple of peppercorns and a bit of immune glow.
I separated her from my flock.
What could be wrong with her?