Hi Queensamore14,
Around here they do frown about diy hrt and i am as bad as you because that's how i started, but i have been seeing a therapist and am now on the road to seeing an endo soon. About your question i have been taking Spiro 8 months and at first i saw a drop in energy and being tired but this has since passed, drowsiness light headiness may be from low blood pressure, i take heart meds and had the same thing so i had to adjust them, never had headaches, you do need to watch your potassium levels, no bananas, salt substitutes or anything with high levels of potassium, if you crave salty foods eat them. High levels of potassium can be fatal. If i were you i would see a dr yesterday and be honest with them about what you are taking, you will probably get a lecture but they can't treat you properly if you are not honest with them.
Paula.