I make myself sick about 2-3 times a week. I know it's not the greatest habit and is no doubt very unhealthy but I only do it when I've eaten too much junk. My weight is fine and I'm otherwise very healthy.
My sister recently found out about it (long story!) and she was horrified. She now has it in her head that I have some sort of eating disorder and will die at any minute.
She told me I need to see a doctor but I've been doing this for nearly eight years now and considering I'm still healthy then I'm hardly going to suddenly drop down dead because of making myself sick a few times a week.