Low Blood Sugar More Condition_symptoms What's The Difference Between Low Blood Sugar And Low Blood Pressure?

What's the difference between low blood sugar and low blood pressure? - low blood sugar more condition_symptoms

I felt a little weak lately, and yesterday, while was in the sun, tanning beds, I have a glass of water and fainted.

my friend B said it was likely a low blood sugar
G my friend said was probably low blood pressure

B told me to drink Coke
G told me to do a bit of salt

I ended up either, because I do not know what had to do.
In going to the doctor next week, but we would appreciate it if someone could give me an idea of what could be wrong.

Thank you!