The Symptoms That Occurred For My Friend Were: Nearly Fainting,

The symptoms that occurred for my friend were: nearly fainting, loss of balance, overheating feeling hot, When they would stand, they would lose balance. Had to sit down. Needed assistance. Hard time shaking it off. Did not completely pass out though. Headache some. When look from left to right, sees blurriness. Has had fainting symptoms before. Pulse was taken, noted that it was slow beats.