The inside of my shoulders are aching?

It will go away once you do this more, i remember mine hurt a lot when i first started boxing for couple months then the more you do it then it will be normal again, but once you break your limits again then it will hurt.

 

Give me some info about yourself height weight experience etc?

 

It happens sometimes but its not a issue it will go away by time

 

How long have you been training properly in boxing? Just as if you've been training several years and this is the first time you're feeling this experience, especially if it was isolated to only one shoulder, that might be worrying, but from the sounds of things it's just your regular post-workout ache.

Everyone needs to know the fundamentals and how to box properly before your style can actually develop from there. GGG didn't win an Olympic Gold without knowing how to box behind the jab with his hands up and how to move on the outside etc. You're nearly the exact same weight and height as me when I competed, and that body frame alone is very different to any of those fighters you've mentioned.

 

Without seeing you, it's virtually impossible for us average Joes to assess your form (like a coach) and diagnose your pain (like a doctor) and tell you how to fix it.
Having said that, a lot of times - arm pain is often due to excessive arm punching.
Make sure you are fully turning your body and using your legs and core. Boxers do not punch with their arms. They punch with their body. Which is why most of us do not get arm pain from punching (from injuries maybe, but not punching).
Form first, absolutely - no exception.
Only once you have that down, can you work on speed and power. If you try to work on speed and/or power before your form - you leave yourself open to a lot of aches and pain.

As per Subak's question - how long have you done this? I'm guessing you're fairly new.

Otherwise, if you've done this a long time - I would think you're smart enough to see a doctor/therapist, than asking on an internet forum.

 

My best advice for you is to try to incorporate their teachings without sacrificing your power.
Keep trying to figure out how. Make that the goal. The challenge.

 

You'd really need a coach to tell you that.
It's really hard to communicate what the perfect ratio of arm movement to body rotation is.
You'd really need someone to observe and correct any issues.

Plus, on top of all that - anytime you're new at something, stuff is gonna hurt no matter what. Just a natural part of learning. I can't tell you how many times people tell me their knuckles hurt and want to know what they should do differently...like ****, I dunno - learn to dance. LOL this sport aint for everyone.

 

Keep trying it.
Bob and weave drills will help your use your legs more dynamically.

You can also try getting into your stance. Push off your right foot to go left. And push off your left foot to go right.
That should get you more used to sharp lateral movement.