The symptoms of this disease are what you described for your age group. In elders this disease may cause confusion or changes in mental awareness. In infants it might cause vomit, tiredness, and a hard time eating.
From what I hear, I believe you have pneumonia.
I don't feel good, I have a really hard time breathing when I move, I feel really tired, I have chills, and I feel sharp pains in my chest.
Hey I don't think I'll be in class today
The symptoms of this can vary dependent on the age, it is more serious in children and elders 65 and older.
Pneumonia is a disease that infects the air sacks in one or both lungs causing fluid or puss to fill them up.
You can catch this disease by breathing in the bacteria and viruses in the air. The most common pneumonia is community-acquired pneumonia. It occurs outside of hospitals or other health care facilities. It may be caused by bacteria, fungi, and viruses.
Get better soon!
If you do have it one way to reduce it is cough medicine, Antibiotics, and fever/pain reducers.
Some ways to prevent this disease is to get you and family members vaccinated, good hygiene, not smoking, and a good immune system.