there are many problems faced while floods they are :
1. people don't have proper shelter for their survival
2.when there is a flood the snakes come out from their holes and they cause harm to people
3.people don't get proper food.
4. there would be power cuts and they cannot do any of the work.
5.if they entire into the flood water it may drown them in to it and cause some kind of allergies.
hope so my answer is useful