Pulmonary Embolism Support Group
By far the most common form of pulmonary embolism is a thromboembolism, which occurs when a blood clot, generally a venous thrombus, becomes dislodged from its site of formation and embolizes to the arterial blood supply of one of the lungs. Symptoms may include difficulty breathing, pain during breathing, and more rarely circulatory instability and death.

1.4 is still higher than the average person, so it would make sense that you're slightly more susceptible to bloody noses than usual. Unless you're gushing blood, it probably isn't a problem.
Like TNT said, if it's gushing or won't stop, that's more the issue.