One of the first things you should check on is if there is any insect activity on the plant. Here is an article from Iowa State University that describes the most common insect pests of Burning Bush, and offers some treatment strategies:
Orthostatic hypotension is the drop in blood pressure that occurs when you transition from sitting or lying down to standing. It is common in people of all ages. As the body adjusts to the position change there may be a brief period of dizziness. This is what some people refer to as âseeing starsâ when they get up.
Low blood pressure is blood pressure low enough to cause symptoms such as dizziness and fainting. Very low blood pressure can cause damage to organs, a process called shock. Various drugs and disorders can affect the body's system for maintaining blood pressure. When blood pressure is too low, the brain malfunctions, and fainting may occur.