Thanks for your question on Health Care Magic.
I can understand your situation and problem.
Possibility of cancerous growth is unlikely in your case.
But since you are smoker and having habit of
tobacco chewing, better to get done biopsy from the lumps and get done histopathological examination to rule out cancer.
Smokers and tobacco chewers are at increased risk of
oral cancer. So biopsy and histopathological examination is must in your case.
Vitamin deficiency is common cause for such lumps in mouth. So if biopsy is negative for cancer than start
multivitamin tablet containing folic acid, niacin,
vitamin b12 and zinc.
And in any case you need to quit smoking as well as tobacco chewing as soon as possible.
Hope I have solved your query.
Wish you good health. Thanks.