Taxol

Just had first treatment of taxol.  Having severe abdominal pain and discomfort when urinating.  I have had about 2 qts of water today.  I am urinating so that is at least good.  So here we are the 4th of July and I don't know whether to call the 24 hour number to my oncologist.  I had to call yesterday because I was having facial flushing and swelling but the benadryl helped take care of that.  Anyone experienced this with taxol?