Today I found out that my blood pressure is low, 60/80

What are some causes of low blood pressure?
And how can I bring my blood pressure back up to normal?
no you read it correctly its 60/80
sorry that is 80/60, i was a little confused
I would like to add that this low blood pressure is accompanied by dizziness, especially upon standing up, fatigue, and other feelings of weakness.

Do you mean 80/60?

In the short-term, causes include dehydration, advanced infection, vagal reactions (the cause of common fainting), heart problems, or certain medications, to name a few.

In the long-run, there are neurologic problems that cause low blood pressure. There are several syndromes that impair the body’s autonomic nervous system — the basic nervous system that controls our automatic functions. Otherwise, some people just have low blood pressure. Make sure you’re hydrated, and see a doctor.