If you add more estrogen again then your bones will experience an awakenen phase.
Estrogen helps with the maintenance of our bones and if we've been without it for sometime then adding it back gets that process underway. Unfortunately you'll encounter dull pains which could be likened to growing pains.
Please note this is different to symptoms of blood clot/dvt.
pain, swelling and tenderness in one of your legs
a heavy ache in the single affected area.
warm skin in the area of the clot.
redness of your skin, particularly at the back of your leg below the knee.
So if you like me and only have the ache and pains then its down to our bodies awakening from their slumber. As others have said it will pass.
However if you get the DVT time symptoms above (heat,redness,single area) then please get it review immediately.
Hope that helps.