get evaluated, surgically correctable
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The awkward swelling in the axillary region may be a lipoma
off course but these are more likely to be the axillary tail of Spence that are the outwards and back wards growth o the normal breasts specially seen in a bit overweight
They get hypertrophied after delivery and the infection has also has made it look deformed.
These can be corrected or resected surgically.
You should get a examined by a plastic surgeon in your locality.
There are many corporate hospitals in your vicinity that have the service of plastic surgeon.
It is not good that you had the lumps for years and did not get checkup.
All breast lumps are to be taken seriously because such lumps may be malignant at times and ignoring them may lead to enormous health loss.
I hope the advise would be informative and useful for you.