Hello.. i have a 16 year old male (afro-caribbean), younger brother (non-biological). No previous medical history, complained of rectal bleed (spots on tissue) in june. But last night he saw more blood in the toilet after he had passed stool. No report of constipation, but he did report chest pain, weakness, headache and abdominal pain, this was after he had passed stool and seen the blood. The abdominal pain was most severe out of all. lasted about 2mins on the left side ( But along with this, he experienced mild chest pain for a short time and weakness, c/o tiredness today as well). He went to the ER today, and was told it is due to constipation. He refused a rectal exam (embarassed). Is able to walk etc. No labs done, no xray (barium enema and xray was explained, but not done). I am unsatisfied with the outcome. Located in the caribbean (Turks and Caicos Islands).

so i am asking for an expert opinion based on the symptoms, and recommendations for treatment, dietary advice and what ever suggestions can be offered. Thanks.