"i&#039;m a healthy 25 year old female who&#039;s been on minocycline for about 3-4 months now.  it&#039;s worked wonders and i didn&#039;t have any side effects to it, until now.  about two weeks ago, i had this awful abdominal pain that landed me in the er for fear it was my appendix.  everything came back perfect.  i&#039;ve since cut back on my antibiotic and only take it every other day because through process of elimination, i think it&#039;s the culprit to my abdominal pain.  my pcp told my i may have developed acute ibs or irritable bowel syndrome from the minocycline (since it is an anti-biotic and will get rid of normal flora).  i&#039;m very upset that i have to stop it; i rarely use any cover up now because my skin is so clear."