Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Call emergency services for:
These symptoms are not a routine part of follow-up and need immediate assessment.
Arrange routine or prompt medical review for new or worsening symptoms such as increased tiredness, frequent bruising, recurrent chest infections, reduced stamina, abdominal discomfort, feeding problems, or changes in development and movement.
If you receive enzyme replacement therapy, report symptoms during or after an infusion promptly.
These may include rash, fever, headache, nausea, breathing symptoms, or feeling faint.
The infusion team can assess whether treatment needs to be paused or adjusted.
Seek urgent medical care after a significant blow to the abdomen, especially if there is new pain beneath the left ribs, left shoulder pain, dizziness, weakness, or fainting.
These can be signs of bleeding from an injured spleen.
Every sign above is quoted from the sofidex article on Sphingomyelinase deficiency. If you are not sure, err upward — it is always reasonable to be checked.