Is this mild gynecomastia? (photos)

You might be having Gynecomastia as can be seen in one of your pictures. But it is better you meet a board certified plastic surgeon near you who can guide you further. 

Healthy male patients with excess breast tissue or unwanted breast 
development who have no underlying breast disease.Men who desire 
improved physical and aesthetic appearance should have realistic 
expectations based on their condition and the procedure performed. You 
should meet with a board certified plastic surgeon to be able to get a 
formal diagnosis and to be able to decide on a course of treatment if 
necessary.

It is very common for men to want a chest/breast reduction and ask about their recovery and when they can start exercising after surgery. You do have some other stuff going on so I strongly feel that it's very important to have an honest conversation with your surgeon about your particular situation, lifestyle, work environment and specifically which procedures you're having done so that you both have the most honest answer about your recovery and are realistic with expectations and results.I would recommend that you see a board-certified plastic surgeon in your area that is a member of both ASPS & ASAPS and performs a lot of short scar chest/breast reductions in men. Good luck with your future surgery!I hope this helps answer your question. If it does, please take a moment to up vote this answer on the “respond” button on the top right.