I wasn't sure whether it was the spiro, estradiol, stress, or diet changes, but I did have muscle cramp, circulation, and nerve issues off and on for maybe a month or so after being on spiro + estradiol for about 6-8 weeks. It's been gone for about a month now though, so I'm guessing it was a temporary adjustment period of some kind, at least in my case.
I mostly had tingling and burning in hands and feet, worse with lots of pressure (too much jogging for example), and a lot more muscle cramps. Making sure I got enough water and magnesium helped a lot with the cramps, and I did end up with a few pinched nerves due to muscle issues that I needed physical therapy to resolve (very old problems that just got pushed over the edge with a little more muscle tightness), but things seem to be fine now.
I don't know if it just resolved with time or due to me being more careful with diet, but I've been making sure to get enough (but not too much!) salt, magnesium, b vitamins, and iodine (in case of any minor thyroid issues).
Edit: given that I'm a bit overweight, I was super worried about diabetes, so I got multiple fasting and non-fasting blood sugar tests and an a1c while this was going on and they all came back totally normal. All other blood work was normal as well.
I never did figure out what was causing my symptoms or why they went away, but as long as they're gone and don't return, I don't see a point in worrying about it.
Regardless, talk to your doctor about it, especially if it doesn't resolve after a few weeks with diet improvements.