I take spironolactone for alopecia and it also helps my high blood pressure - which is what I think it is mostly prescribed for. It does help with the alopecia for anyone that needs help in that area. I have not noticed any help with CFS. You need to monitor your kidneys while taking it.
Yes, I agree with the monitoring. People on spironolactone, especially when starting out, need to get blood tests to monitor their kidney function and electrolytes. Also, low blood pressure (careful in people with OI) need to be monitored. I would advise against starting it with no medical supervision.