In reply to Orbitolina:
One GP, since retired, told me that in the UK we only worry about high BP, in Germany they think high BP is good & you & I would be in intensive care; he also said that they don't really care about high or low BP in France. He also said to take more salt with food, I understand that the body strives to maintain a constant salinity, so if you put more salt in you will retain more water & this boosts BP. Another GP told me that there are pills, but GPs prefer them to be prescribed by consultants, might be worth asking about this.