Nope, not too long at all! The character limit (250 characters max.) serves the purpose of being succinct with one's questions and for simplicity (as stated if you cross the maximum character count). If anything, I reckon you can elaborate it in the comment section of your own question, and refer to your comment in the main question.
(Hm... Unless you find a way to break this character limit on your own.)
I hope that makes sense!