Throbbing pain from wrist to elbow?

Ive got this throbbing pain from my wrist to my elbow, its on the outer part of my arm, its not constant but comes every now and then, its a sharp sort of pain. Its not really painful but it does make me sort of go “oooh!” if that helps! lol

Its been going on for a couple of days and kept waking my up in the night due to pain.

Any ideas what it is?

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Answer:
Have you fallen or punched someone lately? If so it could be slight bruising or damage that has resulted in the nerves in this area being a tiny sensitive. Could be a strained tendon, or a very slight sprain. There can be many reasons for a pain, too much exercise? Been playing tennis? The possibilitys are nearly endless. If it doesn't go off you might want to ask a physician.

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Answer:
look up tennis elbow