I m a Peritoneal dialysis patient,I have been vomiting since Monday,last night I did,but not today,I have had the runs so bad I m hurting.my nurse gave me an Iv yesterday,but I still have to go to the bathroom every few minutes.how can I get better?My anus is hurting so bad I can t sit on it,and have to walk slow.What can I do to rush this situation away?