Hi. I am 23 year old female. My doctor a few years ago suggested taking iron since I am low. Over the last few years I have fainted multiple times. Each time I recall feeling almost confused and dizzy. A few times my ears have rang and I get very hot. The most recent was today I got extremely hot and I felt very faint. I quickly ate some crackers. Then someone was talking to me and my ears felt like they almost wanted to pop but rang very loudly then it went away. I did not faint but I felt weak. So far I have fainted about 4 times in the last 3 to 4 years. I went almost 1.5 years without anything happening and a about 2 months before my episode today I fainted when I was camping. Like i said symptoms were usually: feeling weak, confused, getting very hot, ringing in my ears and fainting. Any idea what this could be? Thank you very much for taking the time to read this.