Extremely low blood pressure?

Hi I am 20 years old and my blood pressure is very low! I just got back from work with a big headache, went to try my bp and it's very low as usual.

I take O.R.S hyrdating tablets and bovril but doesn't seem to work.

I'm always feeling dizzy like I am about to faint and start shaking.

Any ideas what I can do please? xx 

You should consult the Doc. He may suggest some solution though medicines at this age may be the last resort.

He said that there's no medicine or pills for low blood pressure

If you can find out the cause of the low blood pressure then you treat the cause. Say a person has anaemia by treating the anaemia it should solve the low blood pressure. 

Hi Jam my bp is very erratic. It can go high 225/90, I'm on bp meds or low 90/60. When it goes low I feel dizzy as you stated. I drink 3 ozs of water with about 1/2 tsp of salt in it.  It raises bp very quickly. It's a quick fix, not a cure.

One of my friends used to have low blood pressure in the morning especially when he stood up after awakening. He was prescribed some medication for it. I think your Doc may not be considering such a medication at this stage and keeping in view your situation.. He may prescribe some medication when so inevitable.