I've not had a poo for 2 days since lipo freezing, is that normal?

First of all, congratulations on your lipo freezing, kaibeaulexijetson10!
It’s normal to have bowel changes after lipo freezing or any kind of cosmetic procedure. Taking narcotics as pain relievers contributes to constipation as well.
Increase your fluid intake and fiber content in your diet to combat constipation. Walk and move around rather than just sitting and lying down. You should also start weaning your pain meds and you may also use over-the-counter stool softeners to help you poo.
If all else fails, please visit your primary care physician.
Good luck!