The low blood pressure will definitely cause you to feel dizzy and faint.
What did they say was the cause of the low blood pressure?
Well the er Checked me out not diabetic actually. I had low blood pressure of 90/45
What did ER say it was?
Like BluCrystal says, you classic symptoms of diabetes.
With the feelings of fainting, you may have Hypoglycemia which is low sugar levels. You don't have to be a diabetic to get this.
If you are eating a lot and then feeling faint and drinking a lot, it could be too much sugar in the blood stream - hyperglycemia.
Another reason for feeling thirsty and drinking a lot is if you have had a diet that has too much salt.
Hope ER have diagnosed your problem.
Best wishes
Well I passed out on my floor at home so I went to the er
Please see your doctor. You are showing signs of diabetes. Blessings - Blu