Every birthday of mine, I tend to feel a little bit sad, stressed, and above all, very anxious. My reason for this, though, is not the attention, but more so the unknown and the different happening. Birthdays are full of secrets and surprises, all of which I hate, and they also bring back some painful memories.
When I was a little toddler, they triggered a lot of fear in me, because of the unknown and knowing that something that made me feel unhappy could happen. For example, I would never want to be in the same room as a person opening birthday cards, in case there were any musical ones (I hate them now). The same went for birthday presents, in case there were any noisy toys. If someone put up balloons and streamers for my birthday, I would feel overwhelmed. I don't really like it when people sing Happy Birthday either, and the smell of sulfur after the birthday person blows out the candles used to disgust me.
Nowadays, I'm not anxious when it's somebody else's special day, but on mine, I definitely am. I'm not as bad as I used to be, but my memories and expectations are not pleasant. 
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I'm sailing across Spectrum Sea, in my little boat.
The waters of the port were choppy. After I set off, there was a long, massive storm.
Years later, however, the sea calmed. I'm still on tranquil sea, but I'll never reach the Neurotypical Beach.