Marty, on assuming your a fit&healthy 39 year old male, I doubt very much that you a DVT- your quack should be able to rule it out in a short consultation.
It sounds like you may have a severe dose of spendingtoomuchtimeonthemedicalandhealthforum-itis
It can be quite severe.
DVT alone shouldn't cause breathlessness- only if the thrombus moves to the lungs- (pulmonary embolism)