Is vaser lipo while awake using just lidocaine shots going to hurt really bad?

You ask a very personal question that over the internet we can not really advise since we do not know you.....

Any liposuction, including Vaser lipo, can be done relatively comfortably with just local injections of lidocaine, if the area to be treated is relatively small.  For areas about the size of your palm, local anesthesia with or without sedation may be a reasonable alternative.  For larger areas, you may ant to consider deeper sedation or general anesthesia.  Discuss you options fully with your surgeon.  Best wishes, Dr. Lepore.