Hi, I thought I would give you an update but firstly a word of thanks for the support and encouragement, really appreciated.
I had the blood test and was given the results last week, such a relief to be told, ALL CLEAR.
I then had an examination, which I was dreading but the doc was great, took control over the whole situation (no pun intended) and it was nothing, I have had more pain and discomfort from bicycle seats.
The results of the examination backed up the blood test results.
Started on a course of Contiflo and was told I would need to wait around a month for an improvement although the urgency to get to the loo in a big hurry has gone already.
Once again thank you for your advice, and also the helpline was brilliant, reassuring and clear, everything I could have asked for.