Hello, and I am pleased to help, use of my answers are for educational purposes only.
what is his temperature?
How long has this been going on?
Given he has difficulty breathing with chest pains - this could be serious - and he could for example have a Pneumonia, a blood clot, or sometimes even a cardiac condition (yes even a 24 year old) - so this sounds serious enough for him to get seen tonight.
I hope this helps
If you have more questions, please ask