I've just found out I've had a long term problem with my boiler which has probably been emitting the gas into my bathroom. Does anybody have any experience as this as a cause for migraine? I have other symptoms but not all.

"Symptoms of carbon monoxide poisoning

The symptoms of carbon monoxide poisoning aren't always obvious, particularly during low-level exposure
A tension-type headache is the most common symptom of mild carbon monoxide poisoning. Other symptoms include:
dizziness
nausea… read more