Today I got up early at 4 in morning. I was feeling too sleepy i fainted in dental clinic at around 1 pm after seeing root canaling procedure to my son (not sure it was due to that). I felt sweating at first and this is the first time after so long gap I fainted with some part of tongue out according to others. I recovered after drinking glucose. My bp is 110/90 and I do practice in the morning. But why can the faint be due to. I am tensed.