Do excessive pushups lead to huge abnotmal chest cause my forearms and arms looks lil less proportionate to my chest..
Ie 40 inch
Arms 12 inch. Waist 34 inch.
No, pushups do not usually lead to a much bigger chest. Of course there is some development at first, and perhaps this is what you're seeing, idk, but there is a plateau that is normally reached with bodyweight pushups. People can do MORE, like higher reps, which means increased endurance, but to get a bigger chest, higher weight is required. This can happen if you do any of the pushup variations that increase the weight on the arms.
I don't know, maybe that's just your body type, or maybe you need to incorporate more dips, pullups and inverted rows into your bodyweight routine and further develop your arms and back.