Hello.
Thanks for writing to us.
After a major surgery,
electrolyte imbalance is likely which can cause the
muscle cramps that you are having. The
numbness is also likely to improve on taking
multivitamin supplements and electrolyte rich fluids.
I hope this information has been both informative and helpful for you.
Regards,
Dr. Praveen Tayal
drtayal72@gmail.com