Sinus Lift Complication after using Summer’s Ostetome Technique?

Dr. B. asks:
2 months ago I placed an implant in #14 area using a drill to prepare the osteotomy and Summer’s osteotome technique on the apical 3mm to raise the sinus floor. The procedure was uneventful and the area is healing very well. However the patient had emetic episodes on the night of the procedure and has been experiencing vertigo and light headedness since the procedure was performed especially when tilting her head backwards. Anybody have an idea what is going on here? Is any further treatment indicated at this time?