Yes Vas, I have played very similar to this, I feel like every time I going to play a hand I am going to lose.
I had no confidence what so ever, I was the same as you winning till the river and I always said before it landed hes gonna get it on the river!!!
It sucks but it does get better, it is bad luck and it puts you on a complete downer, that's why people are thinking of it as tilt.
It is tilt because you are now at a very emotional roller coaster in your poker game
and its the lack of luck that has put you there, making you play your hands in a scared motion.
Hope your luck turns around for you, you are a very good player and don't you forget that.