Plus, what to do if you experience them.

Some health symptoms are so subtle, you might brush them off as nothing. But they could actually be early warning signs of something serious like a blood clot. The good news? Knowing what to watch for ...

What is a blood clot? Blood clots normally form after an injury to protect your body from losing too much blood, but they can also develop in an artery or vein even if there is no obvious injury.

Elizabeth Simms was 27 years old and about 31 weeks pregnant when she suddenly noticed the first signs of what turned out to be a life-threatening medical emergency. She had woken up one morning in ...