I wouldn't have thought oestrogen could cause these symptoms.
I had various aches and pains last week - back arm, leg etc and I also do exercise classes and had more aches last week after doing them, but it turns out I have a mild virus making me feel generally under the weather, and I am sure this was the cause of the aches.
You mentioned on another post you have the coil and are you certain you can tolerate this progestogen well ie have you had the coil for sometime?
Otherwise maybe you have a virus too?
Hurdity x