Sinking Feeling

Man 1: I bought shares in that company but the stock market has just crashed! I have a sinking feeling that I've lost all my money!
Woman: The meal in this restaurant was very tasty but I have a sinking feeling that I've forgotten my wallet at home and I don't have money to pay the bill!
Man 2: Oh the main player in the team has just got a red card! I've a sinking feeling that my team is going to lose this match!

Li: So, what is this sinking feeling that you have, Neil? If it's not the boat, what is it?

Li:	Hello and welcome to The English We Speak. I'm Li.
Neil:	And I am Neil. Li, let me tell you about this strange dream I had yesterday ... we weren't here. We were somewhere else, in another country ... (Sound of dreamy music)
Neil:	We were lucky to find these cheap tickets and fly here to the United States, weren't we? This is a wonderful place, Li.
Li:	Yes, this is a wonderful place!
Neil:	... where we found a boat and decided to sail on this river! Blue sky, blue water ... Don't you feel at one with nature, Li?
Li:	Of course, yes, I do feel in harmony with nature. But we've been sailing for a while now and I'm not sure where we are ... Where are we, Neil?
Neil:	I'm not sure either. What I can say is that ... this boat is rocking a lot, isn't it? ...
Li:	Yes, but it must be normal.
Neil:	... and I must confess I'm not a very strong swimmer ...
Li:	Don't think about it Neil, just admire the view.
Neil:	But I have a sinking feeling!
Li:	A sinking feeling Neil?! What's going on? Are your feet wet? Can you see water coming into the boat?
Neil:	No, there's no water in the boat. Having a sinking feeling is what you say in English when you realise something bad is happening or about to happen.
	Examples

Neil:	Well, while we were admiring the view a few minutes ago I saw a sign over there on the bank of the river that said: Niagara Falls. I've heard this name somewhere and I don't think it's good. I don't remember why but ...
Li:	What?! Niagara Falls! Did you say that? It has a vertical drop of some 50 metres, Neil! Do you know that?
Neil:	Yes, now I remember! I saw it in a movie! I have a sinking feeling! Grab this life jacket, Li!
Li:	Thank you. Now I have a sinking feeling too!
Neil:	Here we goooooooooooooooo!
Li:	Ahhhhhhhhhhhhhhhhh! (Sound of alarm clock)
Neil:	And that's when I woke up, Li.
Li:	That's good, Neil. But now I have a sinking feeling.
Neil:	Why is that?
Li:	We have been so distracted chatting about your dream that we've missed our train and we will be late for work! Let's run and get a taxi. Bye!
Neil:	Bye!