Is it normal to have hot flashes at night 1-2 weeks post op (lipo)?

This may be due to nerve irritation. If it persists, I recommend following up with your Doctor for a formal evaluation. You may also have swelling, which can last 3-6 months after your procedure. I recommend adding hyperbaric oxygen and lymphatic massage along with your compression to help decrease swelling. To improve your final results, I also recommend adding vanquish for further fat removal, exilis/venus legacy for skin tightening, cellutone/z wave to make the skin smooth, remove scar tissue, and improve the skin’s appearance. See an expert. Best, Dr. Emer

Dear kca,
the symptoms you are experiencing might be caused by an injury of nerves located in the affected areas. This can sometimes happen during liposuction. You shouldn't be worried as the symptoms in most cases subside within a few weeks after they appear. 
In case of infection, the infected area would be red, swollen, hot and it would hurt when you touch it. 
You should inform your plastic surgeon and seek advice. 
Daniel Barrett, MD, MHA, MS 

Certified, American Board of Plastic Surgery 

Member, Am. Society of Plastic Surgery

Thank you for the question. It is rather difficult to fully evaluate your situation without an in-person exam. It is not uncommon to experience some sensory change and temporary discomfort following liposuction. In particular, the hot flashes you're describing may be due to an irritation or disruption of the nerves. Considering that you had your procedure done just 2 weeks ago, I don't think you have any major reasons to be concerned. Give it some time, these symptoms usually resolve on their own in six to eight weeks after the procedure. 
An in-person exam with a board-certified plastic surgeon would be the best way to assess your situation and guarantee an individualized medical advice. Best of luck! Dr. Michael Omidi.