I've always had this problem and it's really getting me down. I blush at the slightest thing! Proper hot face, red cheeks and nose.
It generally happens if something slightly unexpected happens - e.g. meeting someone I vaguely know in the supermarket (I'm fine if I know them well?!), someone at work wanting to discuss shift changes etc.
It doesn't happen every time, and I can go for ages without it happening, but once I've blushed once, it then happens over and over again that day! I suppose because I suddenly get conscious of it and it makes it worse.
Does anyone else have this? What can I do to help??
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