@Communitymemberb5cea0 - Are you having BCG or chemo instillations? BCG is normally for stage 1 non invasive. I am not medically trained and did not choose to try BCG but know that with that treatment the side effects seem to vary greatly between patients. Some experience little such as fatigue, while others have increasing side effects as the treatment continues. If you are having a different treatment then possibly someone else can chime in with information. I am also not sure what you mean by clap the catheter. I know that some people are not able to hold the BCG for a long time. I highly suggest that you write down all of your concerns and discuss them with your doctor or PA prior to the first procedure. I wish you well with your treatments. Please keep us updated on how things are going. My best to you. Linda Urbanski ( moderator, Bladdercancer.net team member)