I thinki am having diarrhea,i have been to toilet almost more than 5 times but i am passing less stool and more gas,what is it ,can you tell me diet?

Lactose?: One possible cause is lactose ( milk sugar) intolerance. There are many other causes. Milk sugar can cause a lot of gas and even diarrhea when it goes undigested into the large intestine where the bacteria there make a lot of gas. However, there are other causes, and if eliminating milk doesn't alleviate the problem see a Doctor

Gastro enteritis..: It can be a acute or chronic infection of colon. Watch for food/water borne infection. Get stool examined and treated.