I'm sorry, you may need to run some medical tests to determine the cause of the symptoms. On the basis of what you've said, we encourage you to have some medical tests: I.V. fluid replacement, E.K.G., blood test, full blood count, kidney function (CBC), kidney function, electrolyte panel, and glucose measurement.
Doctor, I've recently become very weak, and I think it's due to an anti-high blood pressure drug that I'm taking, and I'm feeling dizzy and very fatigued.