Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for severe or sudden breathing difficulty, chest pain, coughing up blood, blue or gray discoloration, fainting, or new confusion.
And for anyone, someone who:
Contact the regular healthcare team promptly for increasing breathlessness, a new fever, worsening cough, new leg swelling, reduced ability to complete usual activities, or problems with oxygen equipment.
These symptoms are not part of routine recovery and should not wait for a scheduled appointment.
And for anyone, someone who:
Follow-up usually begins soon after discharge from the hospital or rehabilitation facility.
Visits may include a review of breathing, oxygen needs, medicines, nutrition, sleep, mood, memory, and the ability to manage daily activities.
A clinician may arrange lung function testing, oxygen measurement during activity, or repeat chest imaging.
These tests are based on symptoms and the hospital course; not every survivor needs the same testing.
The article also says
Rehabilitation can be an important part of recovery.
Physical therapy may rebuild strength and balance.
Occupational therapy can help with everyday tasks.
Pulmonary rehabilitation may combine supervised exercise, breathing education, and symptom management.
Speech therapy may help with swallowing, communication, or voice changes.
Return to work, driving, exercise, and other activities should be gradual and discussed with the care team.
Family members may also need support after a prolonged ICU stay.
Every sign above is quoted from the sofidex article on Acute respiratory distress syndrome. If you are not sure, err upward — it is always reasonable to be checked.