Stomach problem. I can take in my diet!

For many months i am suffering from the problem of gas and goes to latrine 2to 3 times ...i feel that the stool will come but sime times it doesnot ...i have heard about some excessive heat in the body which prevents the function of digestive system...also my left nose tends to explode and blood came out of it whenever i take some foods like dry fruit, khajur or any other items which develops heat in the body or whose character is heat producing, i m not able to take milk as is causes stomach pain may be due to lactic acid ...i dont able to understand what is the riot cause of it ...though i take tea twice but for last 20 days i m not eating anything spicy even though i face problems ...suggest me some home remedies or external treatment ...currently i m taking isabgol husk to clean my stomach ...suggest me some items which i can take in my diet