Not overweight, loose and puffy lower chest, doing exercise. Do I have gynaecomastia?
Your weight is normal according to your height and the way you are describing your situation,it looks that you may be having gynecomastia.
Drug Treatments for Gynecomastia Can be tried after consulting some endocrinologist but invariably they fail to reduce size and surgery is ultimately required.
In many cases regression can be seen within one year of development of Gynecomastia. After one year chances of regression are less and persistence of male breast or Gynecomastia beyond two years is clear indication for surgery.
As far as Gynecomastia Surgery is concerned, In nutshell there are two types - open circum-areolar and minimally invasive.
I think preference should be to go for chest reshaping with Gynecomastia surgery to make look totally masculine.
Consult a plastic surgeon and explore the various possibilities.
I hope this helps
I am available for any other query.
Best of luck.