I had HDR in two sessions, so I went through approximately what you did, only twice. I did have burning urination for two days after the first session. With the second session they used a different ointment with the catheter and there was no burning.
I did not have any real beeding or clots, just pink pee for the first twentyfour hours. I was on an anti-inflamatory steroid for six days with the dose decreasing each day, levaquin for infection, a capsule (that the name escapes me that turned my pee bright green and stained my shorts if I dribbled) that was to ease urinary discomfort, and Flomax. In all they kept everything pretty normal.
I did have some discomfort sitting on a hard chair or bench for a week or so. Be careful not to just plop down on a chair as you may have some discomfort for awhile.