Patient :I ran 18.5 miles last night I felt great up to 15 miles I then started to feel very breathless and tired. I slowed down a lot but when I finished my lips were blue. I have had blue lips after running half marathons in the past. Is this a sign of a problem? Should I be concerned?
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.