When i stretch or i get up from my chair sometimes i lose control and my vision becomes blindish like everything goes blurry and hard to walk at times?

PRESYNCOPE: If you are under 50yo, most likely low blood pressure or hypoglycemia . Start keeping track of blood pressure morning and evening and when you have symptoms . Also you need detailed exam and full lab workup. CBC, CMP, VITD, B12, folic acid, LYME TITERS . If symptoms persist MRI OF BRAIN R/O. tIA v MS. MRA OF CAROTIDS R/O Aneurysm. If you are over 50, you should seek urgent evaluation R/O TIA