Mastectomy with reconstruction same time

I had a mastectomy and reconstruction the same time and had to stop for chemo, just started my first. I felt a bit spacey afterwards, Dr. said I can't finish reconstruction until all treatments are complete. Then they'll have to take the expander out and put in the implant. Also if any of you have done a clinical trial study I would like some imput about that. Thank you all and my prayers are with everyone, Bev