A few weeks/months back I had a sharp pain in my back while urinating causing it to stop, on restarting a few large black spots appeared in my urine and then the pain resolved and it never bothered me again! last week I had some pain in my lower back but the doc put it down to a strain but it also went away (i stupidly forgot to tell the doctor about my urinating problem previously as it had been a month ago) I noticed I would have quite swollen feet at the end of the day but thought this was quite normal as I have a job where I stand all day. Urinating has been ok and if anything I am going a tiny bit less. I go on holiday on monday morning and I am taking Primolut N (norethisterone) to delay my period until I get back and am now a bit worried as I don't want anything to happen me while i'm on holiday. don't want to go back to the doctor again as he'll think i'm worrying needlessly.

age: 21

height: 5,10 and a half inches

weight: 10 stone 11