Thanks for the query,
I am sorry to say that your question is not complete, you have not mentioned me about your age and where and what coil has been placed, please clarify these things. And about your weakness it looks like generalized weakness, check your blood sugar also.For bloating
of abdomen get abdomen examined and you may require a ultrasound
abdomen and pelvis as well.
Hope I answered your question, Kindly reply me if you have any further queries or any comments. I will be very happy to help you.