My shy cat runs up to me every time I make a certain weird noise My very shy cat usually pays no attention to me or my boyfriend unless it’s time to eat. The other day I made a fake “throwing up noise” to something that grossed me out. She immediately ran from the opposite room and came up to me meowing. This in no way was a threatening action. My boyfriend and I have made that sound again to see if she’d react in the same way and she’s ran to us every time. 

What does this mean? Is it a curious thing or some kind of past trauma (she was adopted by us at age 3 and lived with an old person before us) that reminds her of that sound?