Morning headache and stiffed neck. Is it serious?

Duration? Normally this is not a serious condition- you may have slept in an awkward position or had some postural issues the day before. But if it becomes more frequent, you need to see a dr. And get to the source of the problem.
Probably not. It may be serious if you have been having these symptoms for a long time. But it is nice to get it checked with a neurologist.

Related Questions

My son who is 16, felt something pop in his head and a warm feeling during basketball this morning, headache and sore neck afterwards. Is it serious?

See a doctor. I recommend seeing a doctor so that they can make a proper diagnosis and give you something to get rid of the condition or relieve symptoms. Read more...
Broke. Something broke. Please see your physician asap for proper diagnosis and rx. May be nothing, may be quite serious. He must be examined. Read more...