hello and welcome to HCM forum,
i am glad you posted your query, the dental history provided by you is sufficient enough, therefore i would like to inform you that your tooth has developed an infection,causing inflammation of the periapical (root) tissue, yes you can remove the temporary filling yourself, to relief pain.
in your case X-ray is very important to plan the treatment, most probably your tooth will require a root canal treatment
followed by a crown to restore your broken tooth.
there is a little chance of your tooth getting extracted as there is not much pain(only on chewing) or swelling.
kindly visit your dentist
soon, to start with the treatment, till then perform antibacterial (betadine
)mouth wash twice/day.
i hope i answered your query,
i wish you good health,