Bulging Discs in back?

[Blueface]

I know I said enough of DT BUT.......

Here is what one of the article says.
Like most things, developing a blood clot after surgery is more common with age. The chances become higher for individuals over 40 years of age. If you are over 40 and are anticipating a surgery you must be aware of the symptoms of a blood clot so you can contact your doctor right away.

First, a lot of clots form in the thigh or lower leg. Your leg may begin to experience pain and sudden swelling. The leg can begin to turn a reddish-blue color. Your leg may also begin to feel warm.

Second, Clots can break loose and travel back to your lungs. If it blocks the flow of blood to your lungs you could suffer a pulmonary embolism. This is serious and can often cause sudden death. Contact your doctor immediately if you find yourself suffering from any of the following symptoms: a stabbing chest pain, shortness of breath, a rapid heart beat, dizziness, fainting, profuse sweating, anxiety, coughs for no reason, or coughing up blood.

Now isn't this what happened to DT, it went to his lungs?
Didn't he have surgery and didn't he have a pulmonary embolism?
I know immobilized is key more often but not always.
Aren't you somewhat immobilized post serious invasive back surgery?
If it can happen from a flight on a plane, it cant from any surgery confining you to bed, even if just days?

On to med school for me so I can better debate this.