It is unfortunate that you are having these side effects. I have been on spiro for over a month and have had to such effect. My endo recommended taking the meds with food so I take them at Breakfast. I still have 'light headiness' at times and have to watch that. I know that if I overly exert myself during a tennis match, I need to stop and take a few deep breaths. This only takes a minute or so.
I keep an eye on my goal. This is my first step. Next is adding low dosage E! Hopefully this will be in about one month.
All the best to you all!