Could this be Colon Cancer

Hello  I did not know which discussion to post under but thought this was the best one.  Some background info  Female age 69 on various medication have osteoarthritis in several joints underactive thyroid and anxiety.  I was diagnosed with IBS around 6/7 years ago.  Gp at the time did not think I needed a colonscopy because symptoms were typical.  The last few years have been stressful for various health problems and last year we moved 200 miles away to live near daughter.  I found this both emotionally and physcially stressful and my anxiety has been at an all time high since last summer.  This year has seen me have heart scan tests which turned out fine.  My husband recently a colonscopy because he was low on iron.  Several benign polys were removed and next scope is in one year.  I have always tended toward constipation with the IBS in fact through life.  The last 8 months or so I have more constipation.  Not the type where you can't go for days.  Going nearly every day but not passing very much sometimes rabbit type and lumpy stool but nearly always going everyday.  I wondered at the time if because I had been given a diuretic by new gp for blood pressure that maybe I was getting rid of too much water that and the fact I was stressed and anxious almost 24/7 and not sleeping that wll which is still the case.  I assumed this was must my IBS.  At the end of January I got really bad back pain and some low abdominal pain similar to IBS and the next day I thought I had a urinary infection I had a bowel movement which was had blood in the faeces and then blood in urine.  As it was the weekend I saw an emergency doctor who prescribed antibiotics the urinary symptoms cleared up although the doctor said the urine test was clear.  I then saw my gp on the Monday to tell her about the blood in stools and constipation etc.  She did a rectal exam which she could only find remains of old external pile from years ago. She prodded my stomach and said that was ok.  She prescribed Movocol for the constipation which worked but gave me awful bloating and cramps.  I returned to the gp again and this time she gave me fybogel/Mebeverine which is for IBS bowel regulation.  After I had blood in stools for around 3/4 weeks one  regular movement once a day.  I thought the bleeding had cleared up and she referred me to non urgent hospital for investigation.  When the bleeding started again(maybe it did not stop although I though it did) she cancelled that and referred me on 2 weeks urgent appointment which is in  10 days time.  It is very hard to describe the bleeding none in pan always in the stools red to dark red and if I wipe the stool or myself it is light red like you have wiped a graze if you know what I mean.  It has now been going on for 6 weeks.  I know you cannot say for certain what is causing this but do you think it might be colon cancer.  As you can imagine my mind is working overtime.  I can't relax and am thinking about it all the time.  Any comments would be most welcome.  My husband does not let things get to him and cannot understand why I am so anxious and petrified of what it might be and what might lie ahead. Sorry for the long post.  Thanks.

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