Yes, that is bad. The stupider you are, the lower your IQ is. For example, you said your IQ is low. You forgot to capitalize "I," which should always be capitalized when not part of a word. Also, your question should be two sentences. "Is that bad?" should be separate from "Apparently I have a low IQ," which should have a period after "IQ." So in all, yes it is bad, but only for you.