Clumsiness? I don't see why. You can try and fix that on your own, but even if you can't, being clumsy isn't that big of a deal you would need to go to a doctor for. Miserableness? Maybe. If it is bugging you and you can't seem to get over it, it may be best. If you have any suicidal thoughts, you should definitely see a doctor. Sometimes being miserable is more of because the person's outlook on life. If you aren't full blown depressed, chances are you just need loosen up. Try and have fun every once and a while.