These and other symptoms are very common after neck manipulation. In fact one-third up to one-half of all patients treated with chiropractic manipulation report some symptoms during the first 24 hours. They usually go away in the next 24 hours.
Most reactions are not serious enough to consider a problem. In fact, it's possible that minor side effects are "normal" and a necessary part of the body's response to healing.
You may not get the full benefit if you go back expecting problems. Lack of confidence in your health care provider may also prevent a good result. Talk to your chiropractic doctor and let him or her know about your symptoms. A different treatment approach may be used next time with fewer symptoms.