The shoulder and hip joints are the only ball-and-socket joints in the human body due to the need for great motion at the end of the bodyâs limbs and the vast amount of musculature needed to move and support such flexible joints.
A sudden drop in blood pressure can be caused by a rapid change in health or certain medications. It may also signify an underlying medical problem such as thyroid issues. As long as there are no symptoms, low blood pressure in an otherwise healthy person generally is not a concern.
1 This type of shock is characterized by breathing problems, hives, itching, a swollen throat and a sudden, dramatic fall in blood pressure.  Unlike orthostatic hypotension, this disorder causes blood pressure to drop after standing for long periods, leading to symptoms such as dizziness, nausea and fainting.