I had a stroke 3 years ago. I went from a size 20 to a size 12. I want a mommy makeover, arm lift, and BBL. Is it safe?

I am sorry to hear about the stroke you suffered; hopefully, you have fully recovered and are doing well.Generally speaking, combination surgical procedures are done routinely. However, you are wise in being concerned about the safety of combination surgery; risks/possible complications do increase with increased length of surgery… Careful evaluation of your past and current medical condition is necessary prior to determining your "suitability" for the procedures under consideration.   In your case, this "medical clearance" may be best obtained from your internist or neurologist. The physicians who know you best will be your best resource when it comes to answering the above question.
 Once you have obtained this "medical clearance", it will be important that you select your plastic surgeon carefully. During the consultation process, after a complete history and physical, the SAFETY of combining these surgical procedures becomes of paramount importance. Plastic surgeon, anesthesia provider, duration of surgery, surgery facility all important considerations. 
Again, your best bet: choose your plastic surgeon very carefully; everything else including good judgment/advice/planning, anesthesia provider and safe surgery facility will follow. Best wishes.

Thank you for your great question. As important as feeling better about yourself potentially through cosmetic surgery, the most important thing is always your safety. As there are many different types, causes and after effects or stroke including different medications that patients may be taking long term for future prevention, the safety of proceeding is a very individual decision that needs to be thoroughly discussed between yourself, your plastic surgeon, the anesthesiologist and most importantly your primary medical doctor or neurologist who is following you closely and managing and stroke prevention medications. I encourage you to speak with your PMD/neurologist first to see if they think undergoing elective cosmetic surgery is safe and ensure your current medical condition and/or medications will not increase the risk of adverse events during and after any procedures. After this you should also meet with a board certified plastic surgeon to discuss your various surgical options, which can be safely combined in a single operative setting, and again what is safest given your medical condition and medication regimen. Best of luck!