Anyone take acidophilus pearls?

Today i took one acidophilus pearl and about an hour later i started having diarrhea and bleeding.  Ive been flaring for about a week with abodominal pain and formed stools.  I always have urgency.  Yesterday i started noticing mucosl.  Im freaked out about the bleeding because i havent had bleeding with my uc in over a year.  I confused as to if it was already coming on or if the acidohilus pearl could cause diarrhea and bleeding that quick.  I went to my md today for the start of this flare and he wants me to go get a second opinion in UCLA since my gi told me two mnths ago after my scope i was in remission.  He prescribed Paxil for depression. Any input or advice will be greatly appreciated.