I didn't have CK but when my liver was microwaved I had the same thing. I felt like my abdomen was filled with extra fluid. It even looked extended. It was very uncomfortable and even hurt when lightly brushed or touched. It took longer to feel pain free than anyone told me. I was worried my liver was bleeding, but an ultrasound showed it wasn't.
I imagine since both techniques zap the tumors and get it very hot, the after effects could be similar.
Hang in there.
Female age 39- ,2 teens.
Colon Cancer - DX March 2013
Age 34 at DX - Stage III B
Resection surgery -May 2013
FOLFOX - June, 2013 to Sept, 2013
5FU plus leukavorin Sept, 2013 to Dec, 2013
METs liver and lungs discovered Sept, 2015
KRAS - MSS
FOLFIRI plus Avastin - Sept, 2015 - July 2017
Durvalumab and Cediranib Sept 2017 Dec 17
FOLFOX with desensitization protocol - current