What did the doctor diagnose the horse with when he wasn’t feeling well?

Answer: Hay-fever! 🤧🐴

Explanation: The doctor diagnosed the horse with hay-fever because horses love to eat hay, but this time it made the horse feel unwell. Just like humans who suffer from hay-fever, the horse had an allergic reaction to the hay! 🌾 The funny part is that we usually associate hay-fever with humans, but this time, the horse caught it too! 😄