welcome to healthcaremagic
as you have persistent chest pains it would be good if you were investigated for it like being tested for heart problem or lung problem you need to get an ecg done and also a chest xray.
can also cause such pains as it is also hormone based and works the same way as a pill the side effects include-
- mood swings
- breast tenderness
- irregular periods
it can also predispose to you to stroke
, formation of blood clots
in the leg and lungs, liver
problems, shortness of breath
it could also be just a side effect of the nuvaring.
would suggest you visit your gynecologist for workup and appropriate treatment.
hope have answered your query
get well soon take care.