Tubal catheterization

I am going for a Tubal catheterization for my next cycle. Both of my Fallopian tubes are blocked, (proximal blockage) and this procedure can unblock them. I have already had an SIS ultrasound, and it was very painful for me. This is how they found out my tubes are blocked. Has anyone on here had a Tubal catheterization? Please share your experience! None of my friends have had one and I’d like to hear a few personal experience stories about this procedure.