How to translate "this person is salty or this person is feeling salty" For example, I had a flu shot but a week later I got the flu. I feel salty that I went through the trouble of getting the shot and still ended up sick. 

Another example, I stood in line for the new iPhone for hours but it just became sold out when I am almost next in line.

Both 吃亏了，or 气死了。does not feel like it captured its meaning.
I tend to consider it as you were feeling 沮丧.