Hi,
I fainted in the bath room two weeks ago due to low blood pressure. I hit myself in the head. I felt very weak and had a major headache continued with vomiting. I was taken to a hospital right away. The doctor gave me anti nausea medicine and sent me straight away for a CT Scan. Luckily, nothing was found in my CT Scan Result. The doctor instructed me stay at the hospital. He also disallowed me to get out of bed. I was feeling very weak and I was resting the whole afternoon until I had to go to the bathroom. Then I fainted again in the bathroom. I finally spent 3 nights on bed at the hospital. At home, I rest for 3 days on bed after I finally tried working. At work, I'm experiencing difficulties to focus, dizziness, easily tired, and short breath. I finally put myself to rest on bed. I had my blood checked and I went to a doctor. He said I should not be worry because this is only temporary due to the shock that my head had. That was early last week, today I tried to do normal activities. I tried walking for 30 minutes, then I went out for approximately one hour to do some errands. I still feel tired, dizzy, and unable to focus. I am wondering what is wrong with me and how I can cure this.

I am 27. 128 pounds. 5'4"

I used to faint quite often when I was a child due to my low blood pressure. However, I've never experienced this before. Hopefully I can get an input that's helpful to me.