I have never found it awkward or embarrassing to acknowledge my claustrophobia. Perhaps because I have found it possible to control and calm myself under claustrophobic conditions like the MRI I had before my back surgery (see below).
It’s my second phobia that I feel silly mentioning. It is called lepidopterophobia. Sounds much more impressive than "fear of butterflies or moths". I can’t remember when I last encountered any flying creatures in my high rise apartment. But two days ago I first noticed a few moths clinging to the outside of my windows. Ok - they were outside. I could handle that. I kept my windows closed and made sure the screen door to my patio was closed.