Suddenly I had a really sharp pain shoot through my right eyeball then a broken blood vessel appeared please tell me why this could happen is it dangerous

hi Shelly.
not sure if you are asking for info on this,if so go to this link.
Bruising or discoloration Lump or bulge and Lump or bulge Common Related...

You need to seek medical attention. Sharp pain in this area is nothing to ignore.

That's really hard to believe! So who THREW what you CAUGHT, in your throat?

go back to the doctor and have the blood drained off
find another doctor as you may have ruptured a blood vessel
pain killers will mask the real problem
what ever-- seek treatment urgently

Knee pain is not a rare problem. It happens due to the tearing and wearing at the knee joint. Every one can have this problem, women are more prone to knee pain. To treat it effectively, the simplest way is applying cold compress because it can constrict the blood vessels and then reduce the blood flow coming to the pain area. as well as relieve the swelling.

Reference: Home Remedies for Knee pain- Authority Remedies

Random pains come all the time with no reason. If it persists or you have new symptoms call your doctor. But if that is the only symptom you have , don't freak. I'm not a doctor. I'm just telling you to use common sense.

Go to a doctor or hospital, you might have internal bleeding.

This is a physiology question relating to the human body? If that is the case, the brain recognizes a hazard and executes the following system changes immediately.
1. Adrenalin dumps from the adrenal glands into the blood.
2. The vessels then dilate.
3. The heart rate increases
4. The blood pressure raises.
5. Breathing becomes deeper and faster.
6. pupils dilate.
7. hearing becomes more acute.
8. Bowel and bladder prepare to evacuate.

Many of the smaller spots and skin lesions of the face are easily removed with lasers. These include small blood vessels on the face, small brown spots or age spots, and freckles and freckle-like spots on the face and elsewhere. To make the blood vessels less noticeable, concealer is your best choice. There are several brands out there, but the one I recommend is Colosé Cream Powder Concealer. It is great for minor skin imperfections and dark circles under the eyes.