I don't know my IQ.
My high school had me take an IQ test 2 weeks from before my 17th birthday. At 16 and under, they give you the children's test. At 17 and older, they give you the adult test. The guy doing the test waffled a bit because I was so close to the cutoff date, but decided to give me the children's test. Several times during the test he muttered, "I should have done the adult test." At the end, in an attempt at humor, I asked, "Did I pass?" He said, "Oh, you passed. The thing is, an IQ test is supposed to progress through harder and harder questions, to see at what point you start getting things wrong. That's how you find out what your limit is. So you're not supposed to get everything right." ... From which I assume he meant I got too much right.
They never told me my IQ. I've been tempted several times in the 33 years since to find out, but I always stop myself by asking, "What will that get me? Nothing more than an ego boost, which won't be good for me."
Here's what I know: I was valedictorian of my high school. I graduated college with honors. I've been employed full time for 25 years. I make 70% more than the average pay for my profession in my state. I have produced over 100 patents. I have solved problems that made the difference between releasing a product and scrapping it.
And I don't seem to have any ambition of my own. I don't look for projects. People bring them to me and I do what they say. I have almost 20 years until I retire, and I can't wait. I'm always tired, always stressed. I always feel like I'm just barely getting by, like I've been surfing a tsunami my while life. I always feel like I have no spare time to just sit and breathe. But when I do have time, I feel like I should be doing something, like I'm not of value unless I'm accomplishing big things. I'm 50 years old and I haven't yet learned how to just be happy with myself and my life. I would take that over a high IQ any day.