I think the answer is A because of the temperature change on the area
I have never heard of that before. But I do know everyone has cancer in their body it just takes something to trigger it.
Answer:
I would suggest taking a day off if you are in a lot of pain. Stretching and vitamins will help. If you are in a lot of pain, you can take ibuprofen. If you really want to walk tomorrow, try walking just a mile or a half.
Explanation:
The pain should go away shortly. It is probably just muscle building up. Stretching and consistently walking should help the problem. :)