You say that you are having this problem only for the last 2 mths.
In India the probable cause is is Amoebiasis
, which occurs for those who drink contaminated water,
not properly washing hands before food, frequent hotel ?unhealthy & oil rich spicy diet (Fast food).
You have to be careful regarding the above said facts. For few days take frequent, bland diet with curd. Avoid coffee & milk. You can have black Tea. A course of Anti-Amoebic and Anti worm is a must.
Otherwise nothing to worry
with warm regards