See your doctor right away if you have: Arm, shoulder or back pain that occurs with any sort of exertion and is relieved by rest â possibly signaling heart disease or chest discomfort caused by reduced blood flow to your heart muscle (angina)
Affective lability : unstable, rapidly changing emotions. Quick changes of emotions or unstable mood is rather common for everyone. So this symptom can have very different forms and severity. Mild forms are not at all a sign of a major psychiatric disorders. But we refer to people with a quickly changing emotional response who have rapid and extreme mood changes within a very short period, and without appropriate external reasons.
What causes this problem? Mood swings and emotional lability are often caused by damage to the part of the brain that controls emotions and behavior. Often there is no specific event that triggers a sudden emotional response. In some cases the brain injury can cause sudden episodes of crying or laughing.