hi i am 16 years old and i go boxing, i am 5 foot 5 and a half and lately i have been weightlifting quite alot in 6 months i have gone up from 56 kg to 65 kg and i am looking bulky, this is in muscle, i keep getting pains in my shoulder and my performance is lacking and my punch technique does not seem to be as good etc and my trainer thinks im to tense due to excessive weightlifting etc, does anyone have any advice for me please this is getting me down , thanks .
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