Heavy salt intake seems to have helped me

Long ago in my student days I used to eat a ton of ramen noodles because they were cheap, I think 6 for a dollar in those days. I'd mix in a bit of vegetables, peas or corn or whatever. And I did fine.

Yeah, but be careful, too much salt can lead to high blood pressure and risk cardiac diseases...

Get a new doctor. You probably have a potassium deficiency so eat 1-2 bananas a day, and a sports drink every other day.
No decent doctor would recommend you eat more salt, ever. The risks far outweigh the benefits.

If you crave salt then you may have Addisons disease. A rare but potentially fatal disease. I have it and if you take medication the prognosis is good. Gl

Blood pressure high or low? Check that.

if salt prevents the problem then its a salt preventable problem. i was almost passing out because a fuckwad doctor told me i should lower my salt. How in the fuck would he know without testing , the stupid jackass. yea they cant write a script without seeing you but they can fucking kill you without testing your blood and thats fine with them. it should be illegal to tell a person to avoid salt without a blood test.

You need salt for digestion. Your fainting spells may be occuring due to an improper ph balance in your stomach, which is causing you to not properly process your food (calories, nutrients, fat etc). This can cause dizziness, lightheadedness and fainting.

The salt may be fixing your digestion and aleviating the fainting spells.

Have you noticed a change in your bowel movements?

Some people lack sodium and when that happens to the body you can become very disoriented. Which is clearly your situation, since you are still fucjing with the cheap shit and haven't found the bliss of true ramen.

Pros about more salt: it keeps your electrolytes higher, which when too low can harm the body.
Cons: too much salt increases water retention, which can add an extra 5-10 lbs to your body in water retention. Spend one week eating low salt and drinking lots of water and you'll lose that 5-10 lbs. In your case though, you shouldn't cut that much salt from your diet. It'll be best to only cut your salt to where you're just losing about 2 lbs a week in water retention weight. I don't know your particular situation with water weight, so you may not even need to lose any. I'm just speaking about health in general in how you can keep your electrolytes level normal and keep any surplus weight off you. Extra weight is bad for the body, which in turn can increase chances of fainting, but so can too low electrolytes, so you need to just find that right balance, like I said just cut salt to where you're only losing 2 lbs a week.