Hi Hon,
I know that this may seem at odds but I think as you are DIY it is a very good reason to go and see a doctor. Spiro is a very potent drug that affects your blood pressure, kidney function and of course blocks some hormones from binding. The side effects of any drug can be very serious and that is why they should only be used under medical supervision in case you have some underlying physiological issue that the drug will trigger.
I don't want to scare you needlessly but a combination of changes in blood pressure and kidney function that can be caused by Spiro is potentially extremely serious.