Irregular Bowel Movement, more peeing.

Age 65 years.  I have IBS for the last 1 year. Going to toilets frequently. Earlier felt urgency,  now not so much. Mild weight loss has been there. In the early morning after 2 times of watery/small quantity,  semi solid,  paste type goes and again small amt each time. Of late some times see red particles  especially in the morning not able to differentiate blood or undigested red food particles like tomato or beet root etc. Some times feel burning/discomfort in the anus after passing stool for a short time. No weakness, no  pain in abdomin, no appetite loss. Don't drink, not smoke. Every year undergo health check up and in the latest being in October 23, All reports like Ecg, usg, all blood reports including cbc, are normal. Stool and urine reports are  also normal. As I am in UK for family visit and retur