scandigirl wrote: Thank you so much for help and advice. Constipation problem seems to be solved. Last night I got so much pain in my lower back, on the left side, in the kidney area. I was a little worried but I drank lots of fluid and it feels much better today.
This could of course be pain stemming from the kidneys which might explain why drinking liquids helped. You definitely want to drink as much water as possible during the entire treatment.