What I told them that I thought it wasn't working but I clarified saying I'm not getting real relief Then they had to check out the catheter with a CT scan and then a minor surgery to make sure the pump is working, I asked them to change to something stronger and again they said you need a higher dose, I don't use the boluses anymore because they don't work, I went with the pump because I didn't want to take oral pain meds, I feel really stuck with this whole situation and I do feel they should have said we are going to change you to a stronger medication, it's hard to function, I hope I don't have to switch to another Doctor.