Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
1
Is any of this happening now?
Call 911
Call emergency services for chest pressure or pain, severe difficulty breathing, fainting, or signs of stroke such as sudden facial drooping, arm weakness, or trouble speaking.
These symptoms need emergency care whatever your weight.
Other emergency signs, for anyone
Someone who is struggling to breathe, gasping, choking, or cannot get words out
Someone who has chest pain, tightness or pressure lasting more than a few minutes
Someone who has sudden weakness or drooping on one side of the face or body, slurred speech, or sudden confusion
Someone who is unconscious, or cannot be woken
Someone who is bleeding heavily and it will not stop with firm pressure
Someone who has had a seizure that will not stop, or does not wake up afterwards
Someone who has lips or skin that look pale, blue, grey or blotchy
Someone who you believe has taken an overdose or swallowed something poisonous
2
Is any of this happening?
Be seen today
Seek prompt medical advice for:
Rapid or unexplained weight gain
New swelling in your legs or abdomen
Loud snoring with choking, gasping, or severe daytime sleepiness
Excessive thirst, frequent urination, or unexplained blurred vision
Recurrent binge eating, vomiting, fasting, or misuse of laxatives
Weight changes after starting a medicine
And for anyone, someone who:
is getting rapidly more short of breath, or has gained several pounds in a few days with swelling
3
Does any of this apply?
Book an appointment
Arrange a routine appointment if you are concerned about your weight, want support with weight management, or have symptoms of a related condition.
It is also reasonable to seek help if weight concerns are affecting your mood, eating, mobility, sleep, or willingness to attend healthcare.
And for anyone, someone who:
has noticed a lump, a mole that has changed, or unexplained weight loss
The article also says
Overweight itself is not an emergency.
Every sign above is quoted from the sofidex article on Overweight. If you are not sure, err upward — it is always reasonable to be checked.