Bright red blood

I have bright red blood when I wipe after a bowel movement.  I also have irregular stools ranging from very soft and liquid like to very big dark colored that sink sometimes 2 or 3 times a day. I have bloating gas every day. I suffer from pretty bad acid reflex.  I have tried everything from Pepcid to Prilocec.  The Prilocec worked for the first 14 days but then as soon as those days were done the reflex came right back.  I am currently taking 3 Pepcid a day plus about 5 to 7 Tums and it still doesn't completely work but keeps it somewhat at bay.  Now the history of things I probably shouldn't do but hey, it happened.  I drink about 3 glasses of red wine on average every other day (more on the weekend).  I smoke about 3 days a week and have had anal sex on average about once a month for about 5 years.  Yes I am probably a little overweight but I also try to incorporate fiber and healthy eating into my diet and go to the gym about 3 days a week.  I am only 34 but my fear is my grandmother had colon cancer and when I was younger, I was even harder on my body.  My concern is all of this possibly related pointing to a BIG issue?  Or does this sound like a bunch of unrelated symptoms sue to not being kind to my body?

[mammo]

Although bright red blood can be caused by hemorrhoids or an anal tear, it's best to see a Gastroenterologist for an evaluation and get your other issues addressed.  Acid Reflux can be hard to control and when Pepcid and Prilosec aren't helping, a GI doc can help you with other medications.  Get checked out so you can get some relief, and peace of mind.
I wish you all the best.