Meaning of "I've been in a lot of pain the last few months"

[Mathew Jees]

English Grammar Tests, Elementary Level

ESL/EFL Test #55 "Chit Chat: Talking about the Doctor", question 2

Linda: No, I've been ......... a lot of pain the last few months.

(a) over
(b) off
(c) across
(d) in

English Grammar Tests, Elementary Level

ESL/EFL Test #55 "Chit Chat: Talking about the Doctor", answer 2

Linda: No, I've been in a lot of pain the last few months.

Correct answer: (d) in

Your answer was: incorrect
Linda: No, I've been over a lot of pain the last few months.
_________________________

I don't understand this sentence.

Mathew Jees

[Alan]

Hi,