welcome to healthcaremagic
as you described the multiple peanut size fat balls should be examined by a surgeon and proper diagnosis made
other than fat balls tese may be
multiple neurofibromas
both the condition have no natural cure or any medicines to treat them
you should be accustomed to the swellings and do not feel embarrassed
you can go for body building .no harm in it
if any of the swelling become painful or any abnormal things noted should consult surgeon and get it removed