Went to the emergency room the other day, and they couldn't get a cathater in me (just like I had done 10 months ago). However after they pulled the cathater out I managed to urinate, about a 1000 milliliters by going 3 times in about 10 minutes. Their sonic device said I had about 320 milliliters in me not almost a thousand milliliters.This built up over about 3 days of diffucult and low urination from what I regulalry go.They told me they couldn't put or try to leave another cathater of any type in me since I was able to go. As soon as I came home the problem has started up again. They suggest I cath myself, but since they couldn't do it, I don't know how I am suppose to?