Hi I am having constipation from three months. I can pass the stools regularly but it is hard. I am having only rice and sambhar now and chapathi. I drink 2L of water but still it is of no use. It is quite difficult to pass stools. I have read on the internet that constipation is symptoms of colorectal cancer. Hence, am worries about that. The stools size has been significantly reduced as well. Please help me.