It's a dull sort of pain, and I on't know what's causing it It's not a sharp pain; just sort of a dull ache It all began yesterday It started two days ago It came on last night It hurts terrible.(痛得很厉 害。)It’s a dull sort of pain, and I don’t know what’s causing it. It’s not a sharp pain; just sort of a dull ache. It all began yesterday. It started two days ago. It came on last night. It hurts terrible. （痛得很厉 害。）