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
Get urgent or emergency help if kidney stone symptoms occur with:
Fever or shaking chills
Confusion, marked weakness, or fainting
An inability to pass urine
Severe pain with persistent vomiting
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 assessment for severe or persistent side pain, repeated vomiting, difficulty passing urine, or pain that is not controlled.
This needs urgent treatment.
3
Does any of this apply?
Book an appointment
Arrange routine medical follow-up if you have repeated stone symptoms, visible blood in your urine, ongoing urinary discomfort, or difficulty following the recommended fluid or dietary plan.
Follow-up is also important if you develop side effects from medicine or have been asked to repeat blood or urine tests.
The article also says
Fever with a blocked urinary system may mean that infected urine cannot drain from the kidney.
Every sign above is quoted from the sofidex article on Idiopathic hypercalciuria. If you are not sure, err upward — it is always reasonable to be checked.