@annar yes the acute phase reaction can apparently be days to weeks. The APR is usually a few days. Mine was 10, and fever for 7 days. I have read about 3 weeks. GI effects are listed as part of an APR. Again I hope this is true for you since the APR ends! (I also wonder if GI effect could persist a bit after the acute phase reaction is over-???Your doctor might know.)

Interestingly, I just found this on the NIH site about study done on Japan:

"Patients with APRs showed significantly higher increases in total hip BMD at 6 and 12 months and larger reductions in BTMs vs patients without APRs. "