I have an increased extreme fatigue at 4 weeks post op Tummy Tuck, is this normal?

It is obvious you have low HB  and HCTO this for the loss of Blood during the procedure.Ask your Doctor for a very elementary Blodd test lab.Then he will see if you need only iron suplements in food  or you need a blood transfusion

Is not normal to feel so much fatigue, I suggest to ask your surgeon to indicate you a Blood Test to verified your hemoglobin levels, and determine if you need Iron Supplements and Multivitamins.Remembered also that your body is coping with post surgical stress and is in a state of recovery for surgery is an aggression to it. To consume protein is also very important for the repairing of the tissues involve in the surgery.   

Thank you for your question. At 4 weeks post op most patients are getting back to normal activity, and at 6 weeks you should be doing everything you did before surgery. Recovery time for each procedure is patient specific. I would consult with your Plastic Surgeon in person to discuss your concerns.