I'm doing a mommy makeover in 6 days and my MCH, MCHC is low and my RDW is high. Will there be any problems?

All of these findings are consistent with lower than normal levels of Iron. This can be a common finding of pre-menopausal women especially with heavy periods. The more important lab values are hemoglobin and hematocrit. Please discuss with your PS or primary care doctor. 

I would speak with your internist and get his or her go ahead. And, obviously, you need your surgeon's approval. Best of luck, Dr. Nazarian

Modest anemia can be tolerated with this elective aesthetic procedure. Generally there is very little blood loss. Correction of the anemia should be begun and whether or not it's safe to proceed with all of the proposed operations is a judgment decision by your surgeon.