I am 26 years old, I am on blood thinners for Blood Clots in my lung from last year. Yesterday i went to the ER for Rectum Bleeding "Bright Red" I have been having bad Abdominal Pins for the past 2 years if not more. The ER said there is nothing they can do. Should i be concern about this? I am making a Dr appt. but would love some info on this stuff before going