Severe anxiety and depression 2 weeks after tummy tuck. Any suggestions?

I am sorry to hear about the difficult time you are having; make sure that your plastic surgeon is aware also... Some thoughts; make sure you have a strong and patient support system (several people if possible) in place who have time/patience to take care of you. Arrange for professional nursing if any doubt exists regarding the availability and/or stamina of your caretakers.
Be patient with the healing process, understanding that it will take several weeks to months to feel “normal” again. It may also take many months/year to see the end results of your surgery.
Distract your mind with things of interest such as books, magazines, and movies.
Expect less of yourself; do not go back to work, school or chores too early and let others take care of you (for a change).
Pick your surgeon carefully (a well experienced board-certified plastic surgeon) and trust in his/her advice. Keep in close communication with your surgeon and do not hesitate to communicate questions/concerns and the emotional swings that you may experience.
Resume all medications that you were using preoperatively when cleared by your plastic surgeon and stop the use of narcotics and sedatives as soon as feasible after surgery.
Keep in mind the end results as you go through the tougher emotional times after your surgery.
I hope this helps. Best wishes.

Surgery can be a major stress both physically and emotionally. Please contact your doctor immediately and let them know what is going on. Your doctor and possibly other professionals will evaluate you and offer advice and treatment. 

With any surgery there can be and usually is a significant fluxes in our hormones. Surgical stress, anxiety and pain can make it worse. Certainly you need a good supports system to help you through this. I would also let your operating plastic surgeon know what is going on, he / she possibly in association with you internal medicine doctor can hep you get through this. You will do well, hang in there.Good LuckStephen M. Davis, MD, FACSGreen Hills Plastic Surgery