Tooth and Mouth Problems

I need help as there is severe pain and in my teeth because of decay and complete analysis of my teeth.

Tooth on Right side of mouth pains. It is completely hollow and a small felesh or pulp is filled in that hollow.. I do not use right side for chewing since one year. But now it is paining till jawline

Having tooth achefromlast 2 days. I guess it is because of one of my tooth fill up fell a month back and i didnt care for it. I am feeling the pain to the whole right side tooths. Even i feel this sensitivity while drinking water.

Allways getting teeth pain beside of wisdom teeth, so i want to remove theese 2 Need your suggestions

I have white spots over my teeth. Can it be removed? Is it a one time procedure? Also please mention the methods available for removal. Is it risky?

Blood Clot I get blood clot one or the other very often inside my mouth behind my cheeks skin and few days back it was at below part of my tongue. I do smoke but 3-4 cigarettes a day. These blood clots dissolve by themselves. Are these blood clots something to worry about.

I've had a kind of black mark on one of my tooth from many years and it never pained nor caused any trouble but from a few days there is a slight pain when i eat something with that side of the teeth.I am not sure whether it's a cavity or not.Can you confirm that and if it's a tooth cavity what should be done? should i have my tooth removed? And there is slight pain in the gums of another tooth.Can you also confirm why is there a pain?

Is there have any process to repair broken teeth?50% of The front teeth broke down one month before.Is it recoverable???

I used a hard bristled brush for a while and really hurt my gums in that period. I discontinued n switched over to a soft bristled one but there has been no improvement. They are highly sensitive to any kind of food and feel itchy n irritating and it's painful while brushing with a lot of bleeding. Not my teeth or palate, I feel this only on my gums everywhere.

I have bad breath problem. Have tried mouth wash and 2 time brushing but it's of no use. Could you suggest some solutions.