Got my IUD

Yesterday I had gotten my Mirena IUD. I was at the doctor for many hours afterwords due to me passing out multiple times and unable to wake up. Supposedly I have special nerves down by my cervix that are rare and since they put that in and I have never had a baby those nerves are very sensitive which caused me to pass out and go into a state of shock. I was very crampy and tired afterwards yesterday. Any tips, statements, proof that this was worth it, expectations, things not to do, etc. I know that I’m not allowed to take a bath for a few weeks, I’m allowed to shower just not relax in a warm bath. For clarification I am not sexually active, I got this for unhealthy irregular periods. Birth control pills were not working very well for me. I also had gotten told to not wear leggings for a few days, not shave down there for a few weeks because it’s risky to get soap or shaving gel down there. I guess this is all due to risk of infection. Thank you!