my upper body looks small now
Mate, you are over-exaggerating and you know it ... You cannot get small because you have not trained for a couple of weeks - I have witnessed people taking longer breaks because of injuries (e.g. 6 months) with the overall deterioration effect being hardly visible, but it depends on your condition prior to the break as well. As suggested before, I highly recommend training with a rehab specialist a few times, if you have that possibility. If not, talk to one of the trainers in your gym or take a friend along with you for the first few times. Take your time to warm up properly and stretch, use light weights and progress gradually, do slow and controlled movements. Just do not try being a hero from Day 1 ... and at the first sign of pain STOP whatever you are doing.
hotMCfan wrote:I've stopped doing core and leg training since last week cause people are annoying af and keep on asking about my arm.
With all due respect to your personal state of mind, that is probably the biggest mistake you have made, as you have allowed these people to shatter the motivation you have maintained for weeks. Whatever happened, happened, and you have moved on - that is all these people need to know.
This guy below has been my mentor in my training for the last two years - and I have this picture as wallpaper on my iPad (which I bring along in the gym to log my training results). If you need motivation, there are plenty of role models among which you can choose. Just set yourself a goal that is difficult but not unreachable and keep your mind set on it - believe me, you will achieve great things. Good luck